)]}'
{"total_count": 33, "features": [{"id": 5387465121726464, "name": "Support Long Animation Frames API in Web Workers", "summary": "This feature extends the existing Long Animation Frames (LoAF) API to Web Workers. Today LoAF reports only on the main thread and is anchored to rendering frames, so it cannot observe work that blocks a worker's event loop. With this change, a long task that blocks a worker's event loop is reported as a long-animation-frame entry that is observable from inside the worker via PerformanceObserver, with the usual per-script attribution.\n\nThe prototype starts with dedicated workers, reporting a single long task that blocks the worker's event loop. The broader goal is to surface congested moments, intervals where an event loop remains busy and runnable work is delayed. This includes detecting a flood of many small tasks that keeps the event loop busy and reporting it as a long-animation-frame entry, as well as supporting the main thread. This is planned as follow-up work.", "markdown_fields": [], "blink_components": ["Blink>PerformanceAPIs"], "star_count": 19, "search_tags": [], "created": {"by": "joone@chromium.org", "when": "2026-07-16 00:53:29.523936"}, "updated": {"by": "joone@chromium.org", "when": "2026-08-04 20:25:41.149059"}, "category": "Performance", "category_int": 13, "feature_notes": null, "web_feature": "long-animation-frames", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5825981785964544, "created": "2026-07-16 00:53:30.174070", "feature_id": 5387465121726464, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5263031832543232, "created": "2026-07-16 00:53:30.175291", "feature_id": 5387465121726464, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6a5ac7f8.68e56e23.38c8c.019c.GAE%40google.com", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6388931739385856, "created": "2026-07-16 00:53:30.176527", "feature_id": 5387465121726464, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 153, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4981556855832576, "created": "2026-07-16 00:53:30.178109", "feature_id": 5387465121726464, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6107456762675200, "created": "2026-07-16 00:53:30.179653", "feature_id": 5387465121726464, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5544506809253888, "created": "2026-07-16 00:53:30.180736", "feature_id": 5387465121726464, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2026-07-16 00:53:29.523843", "creator_email": "joone@chromium.org", "updater_email": "joone@chromium.org", "owner_emails": ["joone@chromium.org", "joonehur@microsoft.com"], "editor_emails": [], "cc_emails": [], "spec_mentor_emails": ["nrosenthal@google.com"], "unlisted": false, "deleted": false, "editors": [], "cc_recipients": [], "spec_mentors": ["nrosenthal@google.com"], "creator": "joone@chromium.org", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": 6388931739385856, "bug_url": "https://issues.chromium.org/issues/534893134", "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=Blink>PerformanceAPIs&blocking=534893134&cc=joone@chromium.org,joonehur@microsoft.com", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2027, "flag_name": null, "finch_name": "LongAnimationFrameWorker", "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "Web apps increasingly offload work to Web Workers, but a worker that blocks its own event loop is invisible to today's performance APIs. Workers usually have no rendering lifecycle, so there are no animation frames for LoAF to anchor to, and the main-thread LoAF and Long Tasks APIs cannot observe work running in a worker. As a result, a long task in a worker, which delays incoming message events and any OffscreenCanvas rendering, goes unreported even though it directly degrades responsiveness.\n\nRather than introduce a new API, we extend LoAF, because detecting a long animation frame and detecting a congested moment are fundamentally the same task: identifying bottlenecks in an event loop and attributing them to the responsible scripts. Reusing the existing API gives developers a single, familiar mechanism for diagnosing blocking work across both documents and workers.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": "https://github.com/WICG/delayed-message-timing/blob/main/loaf-congested-moments/explainer.md", "explainer_links": ["https://github.com/WICG/delayed-message-timing/blob/main/loaf-congested-moments/explainer.md"], "requires_embedder_support": false, "spec_link": null, "api_spec": false, "automation_spec": false, "interop_compat_risks": null, "all_platforms": true, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": ["https://docs.google.com/document/d/13tERlM0Cd8gKUDC01-lQeW4oNllKs4AKdEGw41bnH4k/edit?usp=sharing"], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2026-08-04", "resources": {"samples": [], "docs": ["https://docs.google.com/document/d/13tERlM0Cd8gKUDC01-lQeW4oNllKs4AKdEGw41bnH4k/edit?usp=sharing"]}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": "https://issues.chromium.org/issues/534893134", "blink_components": ["Blink>PerformanceAPIs"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["joone@chromium.org", "joonehur@microsoft.com"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": false, "desktop": null, "android": null, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 6331756636667904, "name": "Attribution API", "summary": "Measures advertising performance by providing a way to register ad impressions and later attribute conversions (e.g. purchases) to them in a way that does not enabling tracking.", "markdown_fields": [], "blink_components": ["Blink"], "star_count": 82, "search_tags": [], "created": {"by": "apaseltiner@chromium.org", "when": "2025-12-11 13:29:07.359434"}, "updated": {"by": "apaseltiner@chromium.org", "when": "2025-12-11 13:35:15.798423"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "Missing feature", "is_official_web_feature": false, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5104683674894336, "created": "2025-12-11 13:29:07.870179", "feature_id": 6331756636667904, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5207037308960768, "created": "2025-12-11 13:29:07.956273", "feature_id": 6331756636667904, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/693aca2d.710a0220.1d2509.09a9.GAE%40google.com", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5106385287249920, "created": "2025-12-11 13:29:08.076513", "feature_id": 6331756636667904, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5099911295139840, "created": "2025-12-11 13:29:08.147222", "feature_id": 6331756636667904, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5111773659267072, "created": "2025-12-11 13:29:08.216125", "feature_id": 6331756636667904, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5199797806039040, "created": "2025-12-11 13:29:08.349796", "feature_id": 6331756636667904, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2025-12-11 13:29:07.359271", "creator_email": "apaseltiner@chromium.org", "updater_email": "apaseltiner@chromium.org", "owner_emails": ["apaseltiner@chromium.org", "csharrison@chromium.org"], "editor_emails": [], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": [], "cc_recipients": [], "spec_mentors": [], "creator": "apaseltiner@chromium.org", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": 5207037308960768, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=Blink&cc=apaseltiner@chromium.org,csharrison@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2026, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "To define a means of performing attribution for advertising that does not enable tracking, unlike the way much web-based ad measurement is done today (e.g. via third-party cookies).\n\nThis API is a multi-browser effort, informed by the prior work on attribution in Chrome\u2019s Attribution Reporting API (ARA), as well as Meta and Mozilla\u2019s Interoperable Private Attribution (IPA) and WebKit\u2019s Private Click Measurement (PCM) work.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": "https://github.com/w3c/attribution/commit/b4f5331d76b603381383ce38f993443091205117", "explainer_links": ["https://w3c.github.io/attribution/#overview"], "requires_embedder_support": false, "spec_link": "https://w3c.github.io/attribution", "api_spec": true, "automation_spec": false, "interop_compat_risks": null, "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": null, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-12-11", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["Blink"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["apaseltiner@chromium.org", "csharrison@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": false, "desktop": null, "android": null, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://w3c.github.io/attribution", "maturity": {"text": "Specification currently under development in a Working Group", "short_text": "Working draft", "val": 4}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 6320639375966208, "name": "Deprecate and remove: Attribution Reporting API", "summary": "The Attribution Reporting API is a privacy-preserving web API designed to measure ad conversions without third-party cookies or user tracking across sites.\n\nFollowing Chrome's announcement that the current approach to third-party cookies will be maintained, we are now planning to deprecate and remove the Attribution Reporting API (along with other Privacy Sandbox APIs).\n\n[0]: https://privacysandbox.com/news/privacy-sandbox-next-steps/", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 130, "search_tags": [], "created": {"by": "linnan@chromium.org", "when": "2025-10-21 23:30:10.815560"}, "updated": {"by": "skmanickam@google.com", "when": "2026-08-21 17:48:27.872312"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": null, "is_official_web_feature": null, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5428788477427712, "created": "2025-10-21 23:30:11.692939", "feature_id": 6320639375966208, "stage_type": 410, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/beb44d6a-aae5-4664-994a-38fb93bb4580n%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6321806264893440, "created": "2025-10-21 23:30:11.788091", "feature_id": 6320639375966208, "stage_type": 430, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6592154994606080, "created": "2025-10-21 23:30:11.831961", "feature_id": 6320639375966208, "stage_type": 450, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5146287940960256, "created": "2025-12-23 15:40:44.738109", "feature_id": 6320639375966208, "stage_type": 450, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5291282280873984, "created": "2025-10-21 23:30:11.949165", "feature_id": 6320639375966208, "stage_type": 460, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 153, "android_first": 153, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4522679226990592, "created": "2025-10-21 23:30:12.043578", "feature_id": 6320639375966208, "stage_type": 470, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2026-08-21 17:48:27.872312", "creator_email": "linnan@chromium.org", "updater_email": "skmanickam@google.com", "owner_emails": ["linnan@chromium.org"], "editor_emails": ["skmanickam@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["skmanickam@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "linnan@chromium.org", "feature_type": "Feature removal", "feature_type_int": 3, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": 5174734784430080, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2026, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "Chrome has announced that the current approach to third-party cookies will be maintained. Given this, we expect adoption to decrease over time as cross-site measurement will remain possible in Chrome using third-party cookies.\n\nFurther, other browser engines have not signaled interest in launching the API. Removing this (and other Privacy Sandbox APIs) will help focus efforts on the proposed interoperable Attribution standard.\n\nSee also https://privacysandbox.com/news/update-on-plans-for-privacy-sandbox-technologies/.\n", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": [], "requires_embedder_support": false, "spec_link": "https://wicg.github.io/attribution-reporting-api", "api_spec": false, "automation_spec": false, "interop_compat_risks": null, "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": null, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Not applicable", "tag_review_status_int": 4, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2026-08-21", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 153, "android": 153, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://wicg.github.io/attribution-reporting-api", "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5079048977645568, "name": "Attribution Reporting Feature: Remove Aggregatable report limit when trigger context ID is non-null", "summary": "We are landing the following change to the Attribution Reporting API focused on:\r\n* Removing aggregatable report limit when trigger context ID is non-null", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 71, "search_tags": [], "created": {"by": "linnan@chromium.org", "when": "2025-01-17 13:58:35.550641"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:15:51.070713"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 6303939357835264, "created": "2025-01-17 13:58:36.209314", "feature_id": 5079048977645568, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5199188742373376, "created": "2025-01-17 13:58:36.266650", "feature_id": 5079048977645568, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5106503448788992, "created": "2025-01-17 13:58:36.414397", "feature_id": 5079048977645568, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5066903749656576, "created": "2025-01-17 13:58:36.488827", "feature_id": 5079048977645568, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5927737669451776, "created": "2025-01-17 13:58:36.556523", "feature_id": 5079048977645568, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5106409529933824, "created": "2025-01-17 13:58:36.820221", "feature_id": 5079048977645568, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/9910bd89-51a5-4766-b3b7-afd0412ff602n%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 134, "android_first": 134, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2025-02-18 18:32:35.098014", "creator_email": "linnan@chromium.org", "updater_email": "foolip@google.com", "owner_emails": ["apaseltiner@chromium.org", "linnan@chromium.org", "akashnadan@google.com"], "editor_emails": [], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": [], "cc_recipients": [], "spec_mentors": [], "creator": "linnan@chromium.org", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=apaseltiner@chromium.org,linnan@chromium.org,akashnadan@google.com", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2025, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "This change is based on API caller feedback and the need for being able to measure a higher number of conversion events for certain user flows.\n\nCurrently the API has a limit that allows up to 20 aggregatable reports to be generated per source registration which is restrictive for use cases where a user may have a longer user journey. This change removes the aggregatable report limit when a trigger context ID is provided as part of the registration. The removal of this limit is restricted to only when the trigger context ID is specified, because when it is specified the API applies a higher rate of null reports which helps to protect against cross-site information leaking through report counts.\n\nAdditionally, aggregatable reports will still be bound by other limits that restrict the total amount of information that can be measured, such as the L1 contribution budget (65,536) per source and the attribution rate limit.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/pull/1475"], "requires_embedder_support": false, "spec_link": null, "api_spec": false, "automation_spec": false, "interop_compat_risks": "This change is not a fully backwards compatible change. There\u2019s no API surface change, but it can cause the API to behave differently given the same set of inputs. The API caller may receive more aggregatable reports if they use the trigger context ID feature, whereas previously if they tried to generate more than 20 aggregatable reports for a given source registration, then any reports beyond 20 would be rejected and not generated. This change is unlikely to cause any issues for API callers given they will still be able to receive the reports they currently receive without any changes. Additionally, this feature does not break any pre-existing API or web functionality.\n", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": null, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["apaseltiner@chromium.org", "linnan@chromium.org", "akashnadan@google.com"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Enabled by default", "val": 5, "milestone_str": "134"}, "announced": true, "desktop": 134, "android": 134, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": true, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 6547509428879360, "name": "Expose attributionsrc attribute on <area>", "summary": "For Attribution Reporting, the attributionsrc attribute was already unintentionally processed on <area> elements due to code shared with <a>, which intentionally supported that attribute. For completeness, we expose the attribute on <area> with identical syntax and semantics to <a> and without changing the previous processing: When an <area> tag with an attributionsrc attribute is navigated, the foreground request may register navigation sources and, if the attribute is non-empty, one or more background requests will likewise be able to register navigation sources.", "markdown_fields": [], "blink_components": ["Blink"], "star_count": 59, "search_tags": [], "created": {"by": "apaseltiner@chromium.org", "when": "2024-11-15 19:24:12.387556"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:15:55.210046"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 6510788683235328, "created": "2024-11-15 19:24:12.973246", "feature_id": 6547509428879360, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6568727372627968, "created": "2024-11-15 19:24:13.032160", "feature_id": 6547509428879360, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4701101797146624, "created": "2024-11-15 19:24:13.137612", "feature_id": 6547509428879360, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5282932963672064, "created": "2024-11-15 19:24:13.187492", "feature_id": 6547509428879360, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5394517069660160, "created": "2024-11-15 19:24:13.240228", "feature_id": 6547509428879360, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5830818168307712, "created": "2024-11-15 19:24:13.490338", "feature_id": 6547509428879360, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/673f72a6.2b0a0220.3bb1d2.02f2.GAE%40google.com", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 133, "android_first": 133, "ios_first": null, "webview_first": 133, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2025-02-06 16:31:27.961677", "creator_email": "apaseltiner@chromium.org", "updater_email": "foolip@google.com", "owner_emails": ["apaseltiner@chromium.org"], "editor_emails": ["johnidel@chromium.org", "akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["johnidel@chromium.org", "akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "apaseltiner@chromium.org", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": 5830818168307712, "bug_url": "https://issues.chromium.org/379275911", "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=Blink&cc=apaseltiner@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2025, "flag_name": null, "finch_name": null, "non_finch_justification": "This is a minor change largely reusing existing code and behavior. The only web-exposed detail here is the addition of an already-processed HTML attribute to the corresponding tag's IDL definition.", "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "This aligns exposure of the attribute on <area> with the existing processing behavior of the attribute, even when it wasn't exposed.\n\nAdditionally, it makes sense to support the attribute on <area> anyway, as that element is a first-class navigation surface, and we already support this on the other surfaces of <a> and window.open.", "devtrial_instructions": null, "activation_risks": null, "measurement": "n/a", "availability_expectation": "Covered by existing Attribution Reporting I2S as this is a small change re-using the existing API surface", "adoption_expectation": "Covered by existing Attribution Reporting I2S as this is a small change re-using the existing API surface", "adoption_plan": "n/a", "initial_public_proposal_url": "https://github.com/WICG/attribution-reporting-api/pull/1465", "explainer_links": ["https://github.com/WICG/attribution-reporting-api/blob/main/EVENT.md#registering-attribution-sources"], "requires_embedder_support": false, "spec_link": "https://wicg.github.io/attribution-reporting-api/#html-monkeypatches", "api_spec": true, "automation_spec": false, "interop_compat_risks": null, "all_platforms": true, "all_platforms_descr": null, "non_oss_deps": "No.", "anticipated_spec_changes": "n/a", "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": "No.", "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": "Covered by existing Attribution Reporting I2S as this is a small change re-using the existing API surface.", "tag_review_status": "Not applicable", "tag_review_status_int": 4, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": "https://issues.chromium.org/379275911", "blink_components": ["Blink"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["apaseltiner@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Enabled by default", "val": 5, "milestone_str": "133"}, "announced": true, "desktop": 133, "android": 133, "webview": 133, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://wicg.github.io/attribution-reporting-api/#html-monkeypatches", "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": true, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5325966648541184, "name": "Attribution Reporting API Feature (Aggregatable Named Budgets)", "summary": "We are landing the following change to the Attribution Reporting API focused on:\r\n\r\n* making it easier to predefine contribution budget allocation for aggregate reports", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 64, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2024-10-22 20:09:51.889001"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:15:58.609241"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": "\n", "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 4729987775856640, "created": "2024-10-22 20:09:52.347501", "feature_id": 5325966648541184, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6148309205647360, "created": "2024-10-22 20:09:52.406483", "feature_id": 5325966648541184, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5327700204716032, "created": "2024-10-22 20:09:52.498742", "feature_id": 5325966648541184, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4582791009009664, "created": "2024-10-22 20:09:52.558997", "feature_id": 5325966648541184, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4940398710226944, "created": "2024-10-22 20:09:52.603588", "feature_id": 5325966648541184, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4928436018348032, "created": "2024-10-22 20:09:52.829073", "feature_id": 5325966648541184, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/pc6n8o-S_Ns/m/MWVux9LGCAAJ", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 132, "android_first": 132, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-11-25 17:22:42.408322", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": "https://launch.corp.google.com/launch/4355617", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "This change is based on API caller feedback and the need for more control over the contribution budget allocation.\n\nCurrently the API has a concept of \u201cL1 contribution budget.\u201d This budget limits the total amount of information that can be attributed to any single ad impression (i.e. an ad click or view). The current L1 contribution budget is 65,536 and API callers can use this budget across various conversion events based on their own allocation choice.\n\nThis change makes it easier for API callers to pre-allocate how much of the L1 contribution budget they would like to allow for measuring different types of events. With this change API callers can specify the maximum amount of L1 contribution budget they would like to allow for any given type of conversion event, directly addressing API caller feedback.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/pull/1422"], "requires_embedder_support": false, "spec_link": null, "api_spec": true, "automation_spec": false, "interop_compat_risks": "This is a fully backwards compatible change and an optional feature that requires API callers to set new fields in order to use the feature. This feature does not break any pre-existing API or web functionality.", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": "https://github.com/w3ctag/design-reviews/issues/724", "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": "\n", "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 132, "android": 132, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5107034180288512, "name": "Attribution Reporting API Feature (Change To ar_debug Cookie Requirement)", "summary": "We are landing the following change to the Attribution Reporting API focused on:\r\n\r\n* making it easier to receive API cookie-based debug reports\r\n", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 61, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2024-10-22 19:52:41.881990"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:15:56.928545"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5115092260356096, "created": "2024-10-22 19:52:48.414815", "feature_id": 5107034180288512, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5190887897038848, "created": "2024-10-22 19:52:48.684670", "feature_id": 5107034180288512, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5106842920026112, "created": "2024-10-22 19:52:48.824453", "feature_id": 5107034180288512, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5082723440656384, "created": "2024-10-22 19:52:48.901246", "feature_id": 5107034180288512, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5173164244729856, "created": "2024-10-22 19:52:48.962723", "feature_id": 5107034180288512, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5101417084485632, "created": "2024-10-22 19:52:49.277697", "feature_id": 5107034180288512, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/T6i4a_hNeXk/m/tU41bbHMCAAJ", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 132, "android_first": 132, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-11-25 17:22:58.588966", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": "https://launch.corp.google.com/launch/4355599", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "Currently the API allows cookie-based debug reporting only if third-party cookies are available AND the API caller sets the special unpartitioned ar_debug cookie.\n\nThis change makes it easier for API callers to use the API\u2019s cookie-based debug reporting by allowing them to receive cookie-based debug reports as long as they have third-party cookie accessibility on the source/destination sites, and they no longer need to actually set the ar_debug cookie. Third-party cookie accessibility is equivalent to the API caller\u2019s ability to set the ar_debug cookie.\n\nThis change makes it easier for API callers to receive cookie-based API debug reports (i.e. lower chance of misconfigured ar_debug cookies).\n\n", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/issues/1440"], "requires_embedder_support": false, "spec_link": null, "api_spec": true, "automation_spec": false, "interop_compat_risks": "This is not a fully backwards compatible change. The API caller may receive more debug reports overall, however this is unlikely because the  API caller can only set the unpartitioned cookie if they have third-party cookie access and they still has control over whether to enable cookie-based debug reporting via setting other API fields. Additionally, this change will not break any pre-existing API integrations or web functionality.", "all_platforms": true, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 132, "android": 132, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5131578140000256, "name": "Attribution-Reporting API: Remove aggregation key identifier size limit for trigger registrations", "summary": "Currently the aggregation key identifier length limit (https://wicg.github.io/attribution-reporting-api/#max-length-per-aggregation-key-identifier) is checked in both source and trigger registrations.\r\n\r\nAs this limit is not for privacy and it's not persisted in the storage, we are removing this limit in trigger registrations. This is consistent with other fields in the trigger registrations, e.g. filters and scopes, whose size is only checked in source registrations, but not trigger registrations.", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 95, "search_tags": [], "created": {"by": "linnan@chromium.org", "when": "2024-10-16 20:24:34.663664"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:00.286087"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5180321153417216, "created": "2024-10-16 20:24:35.795309", "feature_id": 5131578140000256, "stage_type": 320, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5115231192481792, "created": "2024-10-16 20:24:35.877525", "feature_id": 5131578140000256, "stage_type": 330, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5160583228555264, "created": "2024-10-16 20:24:35.970975", "feature_id": 5131578140000256, "stage_type": 360, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 131, "android_first": 131, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-10-16 20:24:34.623216", "creator_email": "linnan@chromium.org", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "linnan@chromium.org"], "editor_emails": ["linnan@chromium.org"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["linnan@chromium.org"], "cc_recipients": [], "spec_mentors": [], "creator": "linnan@chromium.org", "feature_type": "No developer-visible change", "feature_type_int": 2, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": 5160583228555264, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": null, "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": [], "requires_embedder_support": false, "spec_link": "https://github.com/WICG/attribution-reporting-api/pull/1435", "api_spec": false, "automation_spec": false, "interop_compat_risks": null, "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": null, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Not applicable", "tag_review_status_int": 4, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Enabled by default", "val": 5, "milestone_str": "131"}, "announced": true, "desktop": 131, "android": 131, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://github.com/WICG/attribution-reporting-api/pull/1435", "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": true, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 6257907243679744, "name": "Attribution Reporting API Feature (Debug Key Privacy Improvement)", "summary": "We are landing the following changes to the Attribution Reporting API focused on:\r\n* Improving privacy for debug keys\r\n\r\nThis change helps to mitigate a potential privacy gap with debug keys.\r\n\r\nCurrently the API allows a source debug key or a trigger debug key to be specified if third party cookies are available and can be set by API callers. If either a source or trigger debug key is specified then it will be included in the attribution report. This may lead to a privacy leak if third party cookies are only allowed on either the publisher or the advertiser site but not both. \r\n\r\nThis change mitigates this issue by enforcing that source debug keys and trigger debug keys are only included in the attribution report if they\u2019re present on both the source and trigger, which would mean that third party cookies were available on both the publisher and advertiser site. This change will apply to both event-level reports and aggregatable reports.\r\n", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 52, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2024-08-30 18:20:35.208301"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:03.344950"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5120444513124352, "created": "2024-08-30 18:20:35.380478", "feature_id": 6257907243679744, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5180369205460992, "created": "2024-08-30 18:20:35.450325", "feature_id": 6257907243679744, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6330337572159488, "created": "2024-08-30 18:20:35.603770", "feature_id": 6257907243679744, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5084055771807744, "created": "2024-08-30 18:20:35.658009", "feature_id": 6257907243679744, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5097222027608064, "created": "2024-08-30 18:20:35.725004", "feature_id": 6257907243679744, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5146865943969792, "created": "2024-08-30 18:20:36.036621", "feature_id": 6257907243679744, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/19b60fd8-79c3-462d-9ff5-1ece30fb64fen%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 130, "android_first": 130, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-09-30 17:18:57.563760", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "This change helps to mitigate a potential privacy gap with debug keys.\n\nCurrently the API allows a source debug key or a trigger debug key to be specified if third party cookies are available and can be set by API callers. If either a source or trigger debug key is specified then it will be included in the attribution report. This may lead to a privacy leak if third party cookies are only allowed on either the publisher or the advertiser site but not both. \n\nThis change mitigates this issue by enforcing that source debug keys and trigger debug keys are only included in the attribution report if they\u2019re present on both the source and trigger, which would mean that third party cookies were available on both the publisher and advertiser site. This change will apply to both event-level reports and aggregatable reports.\n", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/pull/1403"], "requires_embedder_support": false, "spec_link": "https://wicg.github.io/attribution-reporting-api/#attribution-debugging", "api_spec": true, "automation_spec": false, "interop_compat_risks": "This is a backwards incompatible change. API callers will continue to receive Attribution Reporting API reports but the information contained in the report may change if the API caller only specifies a debug key on only the source or trigger registration. If they only specify a debug key on one side, then they will no longer receive debug key information in the report they receive but they will continue to receive reports. We expect this to have minimal impact since the API caller will continue to receive attribution reports as expected.\n", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 130, "android": 130, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://wicg.github.io/attribution-reporting-api/#attribution-debugging", "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5487434799513600, "name": "Attribution Reporting API Feature (Flexible contributions filtering)", "summary": "We are landing the following change to the Attribution Reporting API focused on:\r\n\r\n* Improving API report batching capabilities\r\n\r\n", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 63, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2024-07-01 22:56:31.419545"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:05.809019"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5240579742236672, "created": "2024-07-01 22:56:31.583808", "feature_id": 5487434799513600, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5367768588484608, "created": "2024-07-01 22:56:31.631465", "feature_id": 5487434799513600, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4906854810648576, "created": "2024-07-01 22:56:31.723698", "feature_id": 5487434799513600, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6373800622161920, "created": "2024-07-01 22:56:31.781647", "feature_id": 5487434799513600, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4693179919237120, "created": "2024-07-01 22:56:31.835047", "feature_id": 5487434799513600, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4799814025084928, "created": "2024-07-01 22:56:32.089836", "feature_id": 5487434799513600, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6eff258b-3c98-4980-8d8c-7bb2c8dac5cbn%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 128, "android_first": 128, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-08-05 17:37:14.293960", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "This change is based on ad-tech feedback that we heard regarding the need for additional report batching flexibility so that different report contributions can be batched at different cadences.\n\nCurrently aggregate reports generated by the API can consist of multiple separate contributions which are key:value pairs. API callers can batch together aggregate reports and then process them in the aggregation service, which consists of decrypting the reports, aggregating the values, and adding noise, before returning a summary report to the API caller. Additionally, currently all contributions in an aggregate report must be processed by aggregation service at the same time.\n\nWith this change, the API will now allow API callers to specify filtering IDs as part of each contribution (i.e. each key:value pair) in the aggregate report. API callers can then use these filtering IDs, which will also be part of the encrypted payload of the report, to specify which contributions they want to have processed by the aggregation service at a given time.\n\nThis will allow API callers to process contributions with different filtering IDs at different cadences.\n", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/pull/1290"], "requires_embedder_support": false, "spec_link": null, "api_spec": true, "automation_spec": false, "interop_compat_risks": "This is an optional and fully backwards compatible change. This feature provides a new filtering ID that can be set as part of the aggregate report contributions and does not break any pre-existing API or web functionality.", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 128, "android": 128, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 6320694358179840, "name": "Attribution Reporting API Feature (Changes to source-destination-limit logic)", "summary": "We are landing the following change to the Attribution Reporting API focused on:\n\n* Improving transmission loss through changes to the source destination limit logic\n\n", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 68, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2024-07-01 22:02:21.235908"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:07.557390"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5205347655745536, "created": "2024-07-01 22:02:21.405121", "feature_id": 6320694358179840, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6248825831555072, "created": "2024-07-01 22:02:21.468151", "feature_id": 6320694358179840, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6512727848910848, "created": "2024-07-01 22:02:21.588327", "feature_id": 6320694358179840, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6207416810340352, "created": "2024-07-01 22:02:21.667222", "feature_id": 6320694358179840, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6234475104305152, "created": "2024-07-01 22:02:21.734155", "feature_id": 6320694358179840, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4867729940283392, "created": "2024-07-01 22:02:22.043341", "feature_id": 6320694358179840, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/305f8767-6782-4432-b37e-dbd58ada703en%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 128, "android_first": 128, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-08-05 17:36:23.328510", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "This change is based on ad-tech feedback that we have heard regarding a current rate limit for the Attribution Reporting API.\n\nCurrently the API has a limit called the source-destination-limit which allows API callers to register up to 100 distinct destinations per {source site, reporting site} applied to all unexpired sources per browser.\n\nThis rate limit also uses a LIFO model (last-in-first-out) in the sense that once the limit is reached, any new source registrations will be rejected.\n\nWe have heard feedback from multiple ad-techs that they are running into this limit which then causes some amount of loss in terms of not being able to register new sources.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/pull/1217"], "requires_embedder_support": false, "spec_link": null, "api_spec": true, "automation_spec": false, "interop_compat_risks": "This feature is not a backwards compatible change because the behavior for which sources will be rejected or deleted once the source destination limit is hit will now be different. The new behavior is intuitively more in line with how ad-techs measure conversions currently, however there may be some scenarios where keeping older source registrations is more important to an ad-tech, which may still be achieved through the use of the priority field that is part of this feature.\n\nThis change will not cause any site breakage or change for end users of Chrome. Additionally, once this feature is released it will only be applicable to users running on Chrome M128 and future chrome versions. This change will also not delete any existing source registrations in storage unless the limit is hit and there are source registrations that exceed the limit.\n", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 128, "android": 128, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5096560068395008, "name": "Attribution Reporting API Feature (Attribution Scopes)", "summary": "We are landing the following changes to the Attribution Reporting API focused on:\r\n\r\n* providing more control over the attribution filtering\r\n", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 63, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2024-05-31 21:52:18.045971"}, "updated": {"by": "foolip@google.com", "when": "2025-08-25 13:39:27.100498"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5184026976714752, "created": "2024-05-31 21:52:18.277709", "feature_id": 5096560068395008, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5164903097958400, "created": "2024-05-31 21:52:18.366920", "feature_id": 5096560068395008, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5644470019424256, "created": "2024-05-31 21:52:18.652365", "feature_id": 5096560068395008, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5086619635023872, "created": "2024-05-31 21:52:18.878735", "feature_id": 5096560068395008, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5181852179759104, "created": "2024-05-31 21:52:18.958304", "feature_id": 5096560068395008, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5170483803979776, "created": "2024-05-31 21:52:19.337377", "feature_id": 5096560068395008, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/2589cceb-42a9-48cc-a196-fb83dfead8d9n%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 130, "android_first": 130, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-11-05 19:37:21.669520", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": "https://launch.corp.google.com/launch/4327791/approver/1078", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "This change is based on ad-tech feedback and the need for more fine grained filtering controls before the attribution process takes place.\n\nCurrently the API performs filtering after a source is chosen based on matching <reporting origin, destination site> fields. This results in API callers either not receiving attributions reports or incorrect attribution in scenarios where there are multiple different advertisers/campaigns that all convert on the same destination site (i.e. eTLD+1).\n\nThis change allows API callers to now specify a field called \"attribution scopes\" which will be used for filtering before starting the regular attribution flow. This allows API callers more fine grained control over the attribution granularity and the ability to receive proper attributions reports in the scenario described above (i.e. where there are multiple different advertisers/campaigns that all convert on the same destination site).\n\nThis change directly addresses API caller feedback and allows them to have more control over their attribution filtering.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/pull/1282", "https://github.com/WICG/attribution-reporting-api/pull/1215"], "requires_embedder_support": false, "spec_link": null, "api_spec": true, "automation_spec": false, "interop_compat_risks": "This is an optional and fully backwards compatible change. This feature provides a new field for specifying filters that can be checked before the regular attribution process takes place and does not break any pre-existing API or web functionality.", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-25", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 130, "android": 130, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5086433709916160, "name": "Attribution Reporting API Feature (Aggregate Debug Reporting)", "summary": "We are landing the following changes to the Attribution Reporting API focused on:\r\n\r\n* improving debugging capabilities", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 62, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2024-05-31 21:16:12.041937"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:09.203667"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5168949326249984, "created": "2024-05-31 21:16:12.299486", "feature_id": 5086433709916160, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5147399495614464, "created": "2024-05-31 21:16:12.370322", "feature_id": 5086433709916160, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5115400445755392, "created": "2024-05-31 21:16:12.504119", "feature_id": 5086433709916160, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5090094766882816, "created": "2024-05-31 21:16:12.588272", "feature_id": 5086433709916160, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5129847943987200, "created": "2024-05-31 21:16:12.670182", "feature_id": 5086433709916160, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5077031690960896, "created": "2024-05-31 21:16:13.022142", "feature_id": 5086433709916160, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/588cb91a-d7df-4796-8b6d-d1e406f64008n%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 127, "android_first": 127, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-07-01 16:55:37.910027", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": "https://launch.corp.google.com/launch/4327791/approver/1078", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "This change is based on ad-tech feedback and the need to support debugging capabilities after 3rd party cookie deprecation. \n\nCurrently the API supports debug reports that are tied to 3rd party cookies. In order for an API caller to receive a debug report of any kind they need to make sure a specific 3rd party cookie (i.e. ar_debug) is properly set. The API will check to make sure this cookie is set before providing any kind of debug report. Once 3rd party cookies are deprecated these debug reports will no longer be available. \n\nThis change is so the API can continue to provide some form of debugging information after 3rd party cookie deprecation. This is a new report type that is not tied to 3rd party cookies and provides similar debug information. This feature allows API callers to request and receive debug signals in aggregate form. This feature is very similar to current Aggregate Reports supported by the API, except these new reports will be specifically for debug signals. \n\nThis new feature will allow API callers to continue receiving debugging information even after 3rd party cookie deprecation.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/blob/main/aggregate_debug_reporting.md"], "requires_embedder_support": false, "spec_link": "https://wicg.github.io/attribution-reporting-api/#aggregatable-debug-reporting-config", "api_spec": true, "automation_spec": false, "interop_compat_risks": "This is an optional and fully backwards compatible change. This feature provides a new mechanism for receiving debugging information and does not break any pre-existing API or web functionality.", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 127, "android": 127, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://wicg.github.io/attribution-reporting-api/#aggregatable-debug-reporting-config", "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5191009960198144, "name": "Attribution Reporting API Feature (Referrer Policy for Attributionsrc Requests)", "summary": "We are landing the following changes to the Attribution Reporting API focused on:\r\n\r\n* applying element-level referrer policy for specific html elements", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 57, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2024-05-07 21:25:46.701236"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:12.521350"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 6217572080156672, "created": "2024-05-07 21:25:47.082840", "feature_id": 5191009960198144, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5124833439645696, "created": "2024-05-07 21:25:47.186752", "feature_id": 5191009960198144, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5100741667848192, "created": "2024-05-07 21:25:47.384663", "feature_id": 5191009960198144, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5082536266170368, "created": "2024-05-07 21:25:47.488566", "feature_id": 5191009960198144, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5130368847183872, "created": "2024-05-07 21:25:47.596443", "feature_id": 5191009960198144, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5163664842948608, "created": "2024-05-07 21:25:47.986085", "feature_id": 5191009960198144, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/8c39d27a-ae43-40ce-bd32-4656b82fe867n%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 126, "android_first": 126, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-05-07 21:25:46.700431", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "This change is based on ad-tech feedback and so that attributionsrc requests are treated like other subresources on the page (Github issue linked below).\n\nCurrently when the API is called through the use of the attributionsrc attribution as part of various html elements (i.e. <img>, <script>, <a>, or window.open), it ignores the resource-level referrer policy attribute set on the html element.\n\nWith this change the attributionsrc request will now apply the same resource-level referrer policy set in the <img>, <script>, <a>, or window.open.\n\nThis will allow ad-techs more control over whether or not they want to be more or less restrictive regarding the referrer information on their attributionsrc requests. ", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/issues/382", "https://github.com/WICG/attribution-reporting-api/pull/1254"], "requires_embedder_support": false, "spec_link": null, "api_spec": true, "automation_spec": false, "interop_compat_risks": "This feature is not a strictly backwards compatible change because before the change, the resource-level policy was ignored, but now it is not ignored. Given this change the value of the request's referrer header may be different than before. This breakage is unlikely, because it would require an API caller to have a different referrer policy on the document and on the resource, which is unlikely for ARA.", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 126, "android": 126, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5204901830590464, "name": "Attribution Reporting API Feature (Prevent Coalescing of Headers)", "summary": "*No longer planned*\n\nWe are landing the following change to the Attribution Reporting API focused on:\n\n* improving handling of registrations with multiple of the same header", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 58, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2024-05-07 20:52:33.154917"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:10.929034"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5173462066003968, "created": "2024-05-07 20:52:33.337383", "feature_id": 5204901830590464, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5143566006616064, "created": "2024-05-07 20:52:33.416250", "feature_id": 5204901830590464, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5072101441798144, "created": "2024-05-07 20:52:33.582924", "feature_id": 5204901830590464, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5138759334232064, "created": "2024-05-07 20:52:33.723989", "feature_id": 5204901830590464, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5071007902859264, "created": "2024-05-07 20:52:33.804652", "feature_id": 5204901830590464, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5124628287848448, "created": "2024-05-07 20:52:34.186240", "feature_id": 5204901830590464, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/c1897a01-ad86-492a-8cac-e6c0033be278n%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 126, "android_first": 126, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-05-07 20:52:33.154469", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "This feature is mainly to address the edge case (linked in the Explainer links below).\n\nCurrently the API coalesces registration headers if the same header appears multiple times in a response. The individual response values are joined by a \",\" (comma).\n\nBecause the headers contain JSON, this almost always results in an invalid value and therefore responses with multiple of the same header will cause the registration to fail, except in the scenario of the edge case.\n\nGiven this potential edge case, and so that the current API behavior persists, this change makes it so that the API explicitly prevents header coalescing. If the same header appears more than once in the response  then the registration will be rejected.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/issues/1202", "https://github.com/WICG/attribution-reporting-api/pull/1212"], "requires_embedder_support": false, "spec_link": null, "api_spec": true, "automation_spec": false, "interop_compat_risks": "This feature is a backwards incompatible change because of the edge case scenario described above (in the motivation section). However, as described above, this is not a major concern because currently in all cases except the edge case scenario, which seems very unlikely, the behavior for having multiple of the same header in the response is the same.", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "No longer pursuing", "val": 1000, "milestone_str": "No longer pursuing"}, "announced": true, "desktop": 126, "android": 126, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5146883686400000, "name": "Attribution Reporting Feature Bundle: Additional Verbose Debug Reports, Further Gating Source Verbose Debug Reports, Splitting the Attribution Rate Limit", "summary": "We are landing the following changes to the Attribution Reporting API focused on:\r\n\r\n* additional debugging support by supporting new verbose debug reports\r\n\r\n* improving privacy & security by adding additional gating to source verbose debug reports\r\n\r\n* improving rate limit accounting by separating the attribution count for the two ARA report types", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 50, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2024-04-15 23:34:17.152511"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:14.171032"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5137928646033408, "created": "2024-04-15 23:34:17.387648", "feature_id": 5146883686400000, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6296347260223488, "created": "2024-04-15 23:34:17.484510", "feature_id": 5146883686400000, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5094142393974784, "created": "2024-04-15 23:34:17.697401", "feature_id": 5146883686400000, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5068249747423232, "created": "2024-04-15 23:34:17.787838", "feature_id": 5146883686400000, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5081484588482560, "created": "2024-04-15 23:34:17.915426", "feature_id": 5146883686400000, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6279143030521856, "created": "2024-04-15 23:34:18.299342", "feature_id": 5146883686400000, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/194f8cc0-03b3-47e5-ad1c-0938c1a686ben%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 125, "android_first": 125, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-04-15 23:34:17.152145", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "Based on a combination of ecosystem feedback and to improve API privacy and implementation complexity.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/pull/1223", "https://github.com/WICG/attribution-reporting-api/pull/1225", "https://github.com/WICG/attribution-reporting-api/pull/1204", "https://github.com/WICG/attribution-reporting-api/pull/1211"], "requires_embedder_support": false, "spec_link": null, "api_spec": true, "automation_spec": false, "interop_compat_risks": "Features (1), (2), and (4) are fully backwards compatible changes. Feature (3) gating all source verbose debug reports is a backwards incompatible change because now source-destination-limit and source-destination-rate-limit verbose debug reports now require the ar_debug cookie to be set at source registration. This is not a major concern because all other current source verbose debug signals already require the ar_debug cookie to be set and most ad-techs would already be setting this cookie at source registration time.", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 125, "android": 125, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5117902786396160, "name": "Attribution Reporting Feature Bundle: Header Error Debug Reports, Preferred Platform field, Additional Rate Limit, Changing Source Deactivation", "summary": "We are landing the following changes to the Attribution Reporting API focused on:\r\n\r\n* additional debugging capabilities by supporting parsing failure debug reports\r\n\r\n* improving API ergonomics by supporting a field to specify preferred registration platform\r\n\r\n* improving privacy", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 71, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2024-03-08 20:42:25.464477"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:17.145603"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 4817260192727040, "created": "2024-03-08 20:42:25.747185", "feature_id": 5117902786396160, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5114279796932608, "created": "2024-03-08 20:42:25.821575", "feature_id": 5117902786396160, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6268085767241728, "created": "2024-03-08 20:42:25.976070", "feature_id": 5117902786396160, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5979806505369600, "created": "2024-03-08 20:42:26.053137", "feature_id": 5117902786396160, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5919283235520512, "created": "2024-03-08 20:42:26.120591", "feature_id": 5117902786396160, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6274602792910848, "created": "2024-03-08 20:42:26.464816", "feature_id": 5117902786396160, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/c691e58e-bfbb-492b-b235-6facc6d12062n%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 124, "android_first": 124, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-03-08 20:42:25.464076", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "Based on a combination of ecosystem feedback and to improve API privacy.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/pull/1180", "https://github.com/WICG/attribution-reporting-api/pull/1161", "https://github.com/WICG/attribution-reporting-api/pull/851"], "requires_embedder_support": false, "spec_link": null, "api_spec": true, "automation_spec": false, "interop_compat_risks": "Features (1) and (2) are fully backwards compatible changes and are optional features. Feature (3) has very low compatibility risk because it does not require any developer changes and only results in ad techs getting different reports in cases where a user had multiple interactions across different ads when rate limits in the API are hit, which should be very rate.", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 124, "android": 124, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5170344510095360, "name": "Attribution Reporting Feature Bundle: Trigger Data Customization and Aggregatable Value Filters", "summary": "We plan on landing the following changes to the Attribution Reporting API focused on:\r\n\r\n* additional API configurability for event-level reporting by supporting customization for trigger data cardinality and values\r\n\r\n* additional API configurability for summary reports by supporting filters in aggregatable values", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 61, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2024-02-09 00:56:26.876825"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:28.438467"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5132638555996160, "created": "2024-02-09 00:56:27.182620", "feature_id": 5170344510095360, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5098907694792704, "created": "2024-02-09 00:56:27.407304", "feature_id": 5170344510095360, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5089897390276608, "created": "2024-02-09 00:56:27.564350", "feature_id": 5170344510095360, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5099551000363008, "created": "2024-02-09 00:56:27.651656", "feature_id": 5170344510095360, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5164539056488448, "created": "2024-02-09 00:56:27.739508", "feature_id": 5170344510095360, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5135882061611008, "created": "2024-02-09 00:56:28.190629", "feature_id": 5170344510095360, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/d922a5aa-6591-4511-b83f-75e8a5e763ean%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 123, "android_first": 123, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-02-09 00:56:26.876536", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": 5135882061611008, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "Based on a combination of ecosystem feedback and to improve API configurability.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/pull/1129", "https://github.com/WICG/attribution-reporting-api/pull/1149"], "requires_embedder_support": false, "spec_link": null, "api_spec": true, "automation_spec": false, "interop_compat_risks": "Both features are fully backwards compatible changes and are optional features.", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 123, "android": 123, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5181611197071360, "name": "Attribution Reporting Feature Bundle: Reduced Aggregate Delays, Event-Level Report Epsilon Field, Reserved Keys", "summary": "We plan on landing the following changes to the Attribution Reporting API focused on:\n\n* reducing transmission loss by supporting reduced aggregate report delays\n\n* additional API configurability by supporting an event-level reporting epsilon field\n\n* improved extensibility of the API by failing registrations when encountering reserved keys", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 39, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2023-11-21 20:36:46.028228"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:30.112830"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5110665635430400, "created": "2023-11-21 20:36:46.237664", "feature_id": 5181611197071360, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5111628731514880, "created": "2023-11-21 20:36:46.325022", "feature_id": 5181611197071360, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5151198651088896, "created": "2023-11-21 20:36:46.462996", "feature_id": 5181611197071360, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5069128872493056, "created": "2023-11-21 20:36:46.548557", "feature_id": 5181611197071360, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5189420789792768, "created": "2023-11-21 20:36:46.627843", "feature_id": 5181611197071360, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5074096270606336, "created": "2023-11-21 20:36:47.022040", "feature_id": 5181611197071360, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/g9KiC6Rg_mA", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 121, "android_first": 121, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2023-12-26 15:59:06.764523", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": "https://launch.corp.google.com/launch/4292789", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com,johnidel@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": true, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "Based on a combination of ecosystem feedback and to improve transmission loss, API configurability, and ergonomics.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/pull/1114", "https://github.com/WICG/attribution-reporting-api/pull/1097", "https://github.com/WICG/attribution-reporting-api/pull/967"], "requires_embedder_support": false, "spec_link": null, "api_spec": true, "automation_spec": false, "interop_compat_risks": "The first two changes (1. supporting reduced aggregate delays and 2. supporting event-level reporting epsilon field) are fully backwards compatible changes. Both of these features are optional features.\n\nThe third change (3. failing registrations when encountering reserved keys) is backwards incompatible. Any keys starting with an underscore will cause the registration to fail. We have checked the usage of such keys, and the data shows that keys that start with underscore are not currently used. Therefore this change will most likely not break any current registrations.", "all_platforms": false, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com", "johnidel@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 121, "android": 121, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5170880732987392, "name": "Protected Audience - Do not disable cookie setting in ReportEvent until 3PCD (Chrome - 120)", "summary": "We are implementing a temporary fix to not disable credentials on automatic beacon reports until 3rd Party Cookie Deprecation (3PCD), with higher priority for urn iframes. This will help adtech in running experiments with Protected Audience and other APIs. For example, the Attribution Reporting API\u2019s verbose debugging feature requires cookies to be set in headers, so it is currently broken for automatic beacons.", "markdown_fields": [], "blink_components": ["Blink>FencedFrames"], "star_count": 28, "search_tags": [], "created": {"by": "skmanickam@google.com", "when": "2023-11-03 01:13:36.265109"}, "updated": {"by": "lbrady@google.com", "when": "2023-11-10 21:20:25.356108"}, "category": "Web Components", "category_int": 1, "feature_notes": null, "web_feature": null, "is_official_web_feature": null, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5130542400143360, "created": "2023-11-03 01:13:36.453251", "feature_id": 5170880732987392, "stage_type": 320, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5117028017111040, "created": "2023-11-03 01:13:36.594057", "feature_id": 5170880732987392, "stage_type": 330, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5071751142965248, "created": "2023-11-03 01:13:36.703146", "feature_id": 5170880732987392, "stage_type": 360, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFk1C%2BNZrECQ9atA9vbZxjFrVtnW-H6z4yPdUt_4nD1q%3Dot61g%40mail.gmail.com", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 120, "android_first": 120, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2023-11-03 01:13:36.264763", "creator_email": "skmanickam@google.com", "updater_email": "lbrady@google.com", "owner_emails": ["skmanickam@google.com", "shivanisha@google.com", "jkarlin@google.com", "lbrady@google.com", "gtanzer@google.com"], "editor_emails": ["mannyisu@google.com", "gtanzer@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["mannyisu@google.com", "gtanzer@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "skmanickam@google.com", "feature_type": "No developer-visible change", "feature_type_int": 2, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": "https://launch.corp.google.com/launch/4288006", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=Blink>FencedFrames&cc=skmanickam@google.com,shivanisha@google.com,jkarlin@google.com,lbrady@google.com,gtanzer@google.com", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2023, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": null, "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": [], "requires_embedder_support": false, "spec_link": null, "api_spec": false, "automation_spec": false, "interop_compat_risks": null, "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": null, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Not applicable", "tag_review_status_int": 4, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2023-11-10", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["Blink>FencedFrames"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["skmanickam@google.com", "shivanisha@google.com", "jkarlin@google.com", "lbrady@google.com", "gtanzer@google.com"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "In development", "val": 3, "milestone_str": "In development"}, "announced": true, "desktop": 120, "android": 120, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5092796566601728, "name": "Attribution Reporting API: further gating for trigger verbose debug reports", "summary": "We plan on landing one change to the Attribution Reporting API focused on:\n* Further gating for trigger verbose debug reports\n\nThe trigger verbose debug reports will be gated by the presence of the ar_debug cookie (3PC) at both source and trigger registrations.", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 39, "search_tags": [], "created": {"by": "linnan@chromium.org", "when": "2023-10-27 21:25:25.556720"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:31.750923"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5173021220536320, "created": "2023-10-27 21:25:25.739840", "feature_id": 5092796566601728, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5106666425286656, "created": "2023-10-27 21:25:25.805119", "feature_id": 5092796566601728, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5163260102049792, "created": "2023-10-27 21:25:25.925007", "feature_id": 5092796566601728, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5194823716044800, "created": "2023-10-27 21:25:26.010486", "feature_id": 5092796566601728, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5172937770663936, "created": "2023-10-27 21:25:26.112830", "feature_id": 5092796566601728, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5179968699236352, "created": "2023-10-27 21:25:26.444183", "feature_id": 5092796566601728, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/db5ba937-4a1e-4dc1-a2ef-44559f967a9en%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 120, "android_first": 120, "ios_first": null, "webview_first": 120, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2023-10-27 21:25:25.556397", "creator_email": "linnan@chromium.org", "updater_email": "foolip@google.com", "owner_emails": ["linnan@chromium.org", "johnidel@chromium.org"], "editor_emails": ["akashnadan@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["akashnadan@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "linnan@chromium.org", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": "https://bugs.chromium.org/p/chromium/issues/detail?id=1496976", "launch_bug_url": "https://launch.corp.google.com/launch/4288154", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&blocking=1496976&cc=linnan@chromium.org,johnidel@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": true, "confidential": false, "shipping_year": 2023, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "To improve privacy for trigger verbose debug reports.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/pull/1088"], "requires_embedder_support": false, "spec_link": "https://github.com/WICG/attribution-reporting-api/pull/1088", "api_spec": true, "automation_spec": false, "interop_compat_risks": "This change is backwards incompatible as developers need to ensure the special ar_debug cookie is present at source registrations as well in order to receive trigger verbose debug reports. We consider this less concerning as it\u2019s very likely that developers already set the ar_debug cookie on source registrations for debugging purposes while third-party cookies are available. Developers may expect to receive fewer trigger verbose debug reports in a more privacy-preserving way.", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": null, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": "https://bugs.chromium.org/p/chromium/issues/detail?id=1496976", "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["linnan@chromium.org", "johnidel@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 120, "android": 120, "webview": 120, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://github.com/WICG/attribution-reporting-api/pull/1088", "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5140711678935040, "name": "Private Aggregation API: aggregation coordinator selection", "summary": "Modification to the Private Aggregation API to provide a mechanism for selecting which coordinator to use for payload encryption (from an vendor-specified allowlist). The choice of service is made with an additional option in Shared Storage\u2019s run() and selectURL() calls, and in Protected Audience\u2019s runAdAuction() and joinAdInterestGroup() calls. The broad approach largely aligns with Attribution Reporting\u2019s approach (see https://chromestatus.com/feature/5197591256236032).", "markdown_fields": [], "blink_components": ["Blink>PrivateAggregation"], "star_count": 49, "search_tags": [], "created": {"by": "alexmt@chromium.org", "when": "2023-10-11 18:41:23.165185"}, "updated": {"by": "alexmt@chromium.org", "when": "2023-12-18 09:37:29.662406"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": null, "is_official_web_feature": null, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5140953069518848, "created": "2023-10-11 18:41:23.473216", "feature_id": 5140711678935040, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5188391251738624, "created": "2023-10-11 18:41:23.579117", "feature_id": 5140711678935040, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4872227032137728, "created": "2023-10-11 18:41:23.772546", "feature_id": 5140711678935040, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5188790885023744, "created": "2023-10-11 18:41:23.840684", "feature_id": 5140711678935040, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5096912944627712, "created": "2023-10-11 18:41:23.923390", "feature_id": 5140711678935040, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5096190282825728, "created": "2023-10-11 18:41:24.246699", "feature_id": 5140711678935040, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAA%2BBiFmJSK39%3D%3DRoWBmxnmZ2Y3h4krDKFBa_CUHAH%2BzjXj-T3A%40mail.gmail.com", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 121, "android_first": 121, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2023-12-18 09:37:29.662406", "creator_email": "alexmt@chromium.org", "updater_email": "alexmt@chromium.org", "owner_emails": ["alexmt@chromium.org"], "editor_emails": ["alexmt@chromium.org", "johnidel@chromium.org", "edube@google.com", "ashamenon@google.com"], "cc_emails": [], "spec_mentor_emails": ["yoavweiss@chromium.org"], "unlisted": false, "deleted": false, "editors": ["alexmt@chromium.org", "johnidel@chromium.org", "edube@google.com", "ashamenon@google.com"], "cc_recipients": [], "spec_mentors": ["yoavweiss@chromium.org"], "creator": "alexmt@chromium.org", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": 5096190282825728, "bug_url": "https://crbug.com/1481254", "launch_bug_url": "https://launch.corp.google.com/launch/4272421", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=Blink>PrivateAggregation&cc=alexmt@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": null, "finch_name": "PrivateAggregationApiMultipleCloudProviders", "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "To support multiple deployment options for the aggregation service, e.g. deployments on different cloud providers\n\n", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": "https://github.com/patcg-individual-drafts/private-aggregation-api/issues/78", "explainer_links": ["https://github.com/patcg-individual-drafts/private-aggregation-api#aggregation-coordinator-choice"], "requires_embedder_support": false, "spec_link": "https://github.com/patcg-individual-drafts/private-aggregation-api/pull/106", "api_spec": true, "automation_spec": false, "interop_compat_risks": null, "all_platforms": null, "all_platforms_descr": "All but Webview", "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": null, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": "No new debug capabilities beyond the existing internals page (chrome://private-aggregation-internals) and temporary debug mode.", "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": "https://github.com/w3ctag/design-reviews/issues/846", "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2023-12-18", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": "https://crbug.com/1481254", "blink_components": ["Blink>PrivateAggregation"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["alexmt@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Enabled by default", "val": 5, "milestone_str": "121"}, "announced": true, "desktop": 121, "android": 121, "webview": null, "ios": null}, "ff": {"view": {"url": "https://github.com/mozilla/standards-positions/issues/805", "notes": "We have not requested a signal for this change specifically. The Gecko position on Shared Storage (one of the ways Private Aggregation is exposed) is negative.", "text": "Closed Without a Position", "val": 5}}, "safari": {"view": {"url": "https://github.com/WebKit/standards-positions/issues/189", "notes": "We have not requested a signal for this change specifically", "text": "Closed Without a Position", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://github.com/patcg-individual-drafts/private-aggregation-api/pull/106", "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": true, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5148973702840320, "name": "Private Aggregation API bundled enhancements", "summary": "We're planning a few bundled changes to Private Aggregation:\r\n- Null report fixes: Currently reports with no contributions are inadvertently dropped. This change ensures that, when a context ID is specified, a null report is sent even if budget is denied. Separately, it fixes a bug causing budget to always be denied for null reports.\r\n- Debug mode eligibility changes: Currently, debug mode is always available. This change only allows debug mode for callers that are allowed access to third-party cookies, silently dropping the debug mode otherwise. Note that this will allow debug mode to automatically sunset when third-party cookies are deprecated.\r\n- Padding report payloads: To avoid the payload size being dependent on the number of contributions, we will pad it with 'null' contributions to a fixed length. **Note**: this change will also affect Attribution Reporting reports.\r\n- Reducing delay: When a context ID is specified, we remove the randomized 10-60 minute delay, which is superfluous as a report is always sent in this case. Instead, we just wait until the Shared Storage operation timeout.\r\n\r\nNote this is a recreation of https://chromestatus.com/feature/5205079858085888 which had the wrong feature type.", "markdown_fields": [], "blink_components": ["Blink>PrivateAggregation"], "star_count": 53, "search_tags": [], "created": {"by": "alexmt@chromium.org", "when": "2023-10-02 21:12:07.356647"}, "updated": {"by": "alexmt@chromium.org", "when": "2024-08-15 18:56:03.578571"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": null, "is_official_web_feature": null, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5191320704647168, "created": "2023-10-02 21:12:07.598638", "feature_id": 5148973702840320, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5199918289649664, "created": "2023-10-02 21:12:07.689320", "feature_id": 5148973702840320, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5140591235301376, "created": "2023-10-02 21:12:07.828839", "feature_id": 5148973702840320, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5116822114533376, "created": "2023-10-02 21:12:07.900170", "feature_id": 5148973702840320, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5182747278835712, "created": "2023-10-02 21:12:07.983530", "feature_id": 5148973702840320, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5130545071915008, "created": "2023-10-02 21:12:08.401586", "feature_id": 5148973702840320, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAA%2BBiF%3DMBk5ra9sn9i4ajaNSd9aMFKE_9DpxE8pziGY6YXB9Mg%40mail.gmail.com", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 119, "android_first": 119, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2023-10-02 21:12:07.355574", "creator_email": "alexmt@chromium.org", "updater_email": "alexmt@chromium.org", "owner_emails": ["alexmt@chromium.org"], "editor_emails": ["johnidel@chromium.org", "edube@google.com", "ashamenon@google.com"], "cc_emails": [], "spec_mentor_emails": ["yoavweiss@chromium.org"], "unlisted": false, "deleted": false, "editors": ["johnidel@chromium.org", "edube@google.com", "ashamenon@google.com"], "cc_recipients": [], "spec_mentors": ["yoavweiss@chromium.org"], "creator": "alexmt@chromium.org", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": "https://crbug.com/1481761", "launch_bug_url": "https://launch.corp.google.com/launch/4272421", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=Blink>PrivateAggregation&cc=alexmt@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": true, "confidential": false, "shipping_year": 2023, "flag_name": null, "finch_name": "Padding: PrivacySandboxAggregationServiceReportPadding All other features: PrivateAggregationApiBundledEnhancements", "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/patcg-individual-drafts/private-aggregation-api/pull/94", "https://github.com/patcg-individual-drafts/private-aggregation-api/pull/93", "https://github.com/patcg-individual-drafts/private-aggregation-api/pull/95", "https://github.com/WICG/attribution-reporting-api/pull/1031", "https://github.com/patcg-individual-drafts/private-aggregation-api/pull/100"], "requires_embedder_support": false, "spec_link": "https://github.com/patcg-individual-drafts/private-aggregation-api/pull/91,https://github.com/patcg-individual-drafts/private-aggregation-api/pull/90,https://github.com/patcg-individual-drafts/private-aggregation-api/pull/98,https://github.com/WICG/attribution-reporting-api/pull/1030,https://github.com/patcg-individual-drafts/private-aggregation-api/pull/103", "api_spec": true, "automation_spec": false, "interop_compat_risks": "- Null report fixes: Increases the number of reports sent to reporting endpoints, reporting endpoints using plaintext debug payloads will need to handle the null report case.\n- Debug mode eligibility changes: Backwards incompatible for callers using enableDebugMode() without third-party cookie eligibility.\n- Padding report payloads: Compatible with existing aggregation service versions. Reporting endpoints will see larger payloads and null contributions added to the plaintext debug payloads (if used).\n- Reducing delay: Should not require any reporting endpoint changes, reports will simply arrive earlier.", "all_platforms": null, "all_platforms_descr": "All but Webview", "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": "No new debug capabilities beyond the existing internals page (chrome://private-aggregation-internals) and temporary debug mode.", "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": "https://github.com/w3ctag/design-reviews/issues/846 (We have not requested a signal for these changes specifically.)\n", "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2024-08-15", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 2, "browsers": {"chrome": {"bug": "https://crbug.com/1481761", "blink_components": ["Blink>PrivateAggregation"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["alexmt@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Enabled by default", "val": 5, "milestone_str": "119"}, "announced": true, "desktop": 119, "android": 119, "webview": null, "ios": null}, "ff": {"view": {"url": "https://github.com/mozilla/standards-positions/issues/805", "notes": "We have not requested a signal for these changes specifically. The Gecko position on Shared Storage (one of the ways Private Aggregation is exposed) is negative.", "text": "Closed Without a Position", "val": 5}}, "safari": {"view": {"url": "https://github.com/WebKit/standards-positions/issues/189", "notes": "We have not requested a signal for these changes specifically", "text": "Closed Without a Position", "val": 5}}, "webdev": {"view": {"text": "Positive", "val": 2, "url": null, "notes": "Positive for reducing delay"}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://github.com/patcg-individual-drafts/private-aggregation-api/pull/91,https://github.com/patcg-individual-drafts/private-aggregation-api/pull/90,https://github.com/patcg-individual-drafts/private-aggregation-api/pull/98,https://github.com/WICG/attribution-reporting-api/pull/1030,https://github.com/patcg-individual-drafts/private-aggregation-api/pull/103", "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": true, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5197591256236032, "name": "Attribution Reporting Feature bundle: aggregation coordinator selection", "summary": "We plan on landing the following change to the Attribution Reporting API focused on:\n- Multiple cloud providers support for aggregate reporting, supporting AWS and GCP\n\n**Note** This change will also affect Private Aggregation\u2019s aggregatable reports by adding a new top-level field aggregation_coordinator_origin.\n", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 21, "search_tags": [], "created": {"by": "linnan@chromium.org", "when": "2023-09-29 22:25:33.183130"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:16:33.354889"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5132311645650944, "created": "2023-09-29 22:25:33.387723", "feature_id": 5197591256236032, "stage_type": 320, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5178107673968640, "created": "2023-09-29 22:25:33.573668", "feature_id": 5197591256236032, "stage_type": 330, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5071252041760768, "created": "2023-09-29 22:25:33.659206", "feature_id": 5197591256236032, "stage_type": 360, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/6e44SBtEtcQ", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 119, "android_first": 119, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2023-09-29 22:25:33.181612", "creator_email": "linnan@chromium.org", "updater_email": "foolip@google.com", "owner_emails": ["linnan@chromium.org", "johnidel@chromium.org"], "editor_emails": [], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": [], "cc_recipients": [], "spec_mentors": [], "creator": "linnan@chromium.org", "feature_type": "No developer-visible change", "feature_type_int": 2, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=linnan@chromium.org,johnidel@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2023, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": null, "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": [], "requires_embedder_support": false, "spec_link": "https://wicg.github.io/attribution-reporting-api", "api_spec": false, "automation_spec": false, "interop_compat_risks": "The change is backwards compatible, and allows developers to select the deployment option for the aggregation service. By default, the AWS coordinator will be used (the existing behavior), and the public keys will be served on both old and new endpoints during the transition period.", "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": true, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Not applicable", "tag_review_status_int": 4, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["linnan@chromium.org", "johnidel@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 119, "android": 119, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://wicg.github.io/attribution-reporting-api", "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5180621798506496, "name": "Attribution Reporting Feature bundle: registration limit, 1hr delay", "summary": "We plan on landing a few changes to the Attribution Reporting API focused on:\r\n-Increasing limits on registration data size to allow more flexibility\r\n-Removing non-privacy-bearing browser-imposed delay to allow reports to be received faster\r\n\r\nSpec changes\r\n-Remove aggregation keys size limit on trigger registration\r\n-Remove 1-hour delay between end of report window and transmission", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 20, "search_tags": [], "created": {"by": "akashnadan@google.com", "when": "2023-09-12 17:55:23.637194"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 08:26:42.049328"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5111961008472064, "created": "2023-09-12 17:55:23.862309", "feature_id": 5180621798506496, "stage_type": 320, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5196473482608640, "created": "2023-09-12 17:55:24.008643", "feature_id": 5180621798506496, "stage_type": 330, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5194405522964480, "created": "2023-09-12 17:55:24.107270", "feature_id": 5180621798506496, "stage_type": 360, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/Mh-mJiyJZFk", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 118, "android_first": 118, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2023-09-12 17:55:23.636743", "creator_email": "akashnadan@google.com", "updater_email": "foolip@google.com", "owner_emails": ["akashnadan@google.com"], "editor_emails": ["jkarlin@google.com", "amitnm@google.com", "johnidel@chromium.org", "csharrison@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["jkarlin@google.com", "amitnm@google.com", "johnidel@chromium.org", "csharrison@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "akashnadan@google.com", "feature_type": "No developer-visible change", "feature_type_int": 2, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=akashnadan@google.com", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2023, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": null, "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": [], "requires_embedder_support": false, "spec_link": "https://wicg.github.io/attribution-reporting-api", "api_spec": false, "automation_spec": false, "interop_compat_risks": null, "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": null, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Not applicable", "tag_review_status_int": 4, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["akashnadan@google.com"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "No active development", "val": 1, "milestone_str": "No active development"}, "announced": true, "desktop": 118, "android": 118, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://wicg.github.io/attribution-reporting-api", "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5205079858085888, "name": "Private Aggregation API bundled enhancements", "summary": "We're planning a few bundled changes to Private Aggregation:\n- Null report fixes: Currently reports with no contributions are inadvertently dropped. This change ensures that, when a context ID is specified, a null report is sent even if budget is denied. Separately, it fixes a bug causing budget to always be denied for null reports.\n- Debug mode eligibility changes: Currently, debug mode is always available. This change only allows debug mode for callers that are allowed access to third-party cookies, silently dropping the debug mode otherwise. Note that this will allow debug mode to automatically sunset when third-party cookies are deprecated.\n- Padding report payloads: To avoid the payload size being dependent on the number of contributions, we will pad it with 'null' contributions to a fixed length. **Note**: this change will also affect Attribution Reporting reports.\n- Reducing delay: When a context ID is specified, we remove the randomized 10-60 minute delay, which is superfluous as a report is always sent in this case. Instead, we just wait until the Shared Storage operation timeout.\n\nNote that a duplicate feature was created for shipping reviews (e.g. Privacy, Security) as this has the incorrect feature type: https://chromestatus.com/feature/5148973702840320", "markdown_fields": [], "blink_components": ["Blink>PrivateAggregation"], "star_count": 34, "search_tags": [], "created": {"by": "alexmt@chromium.org", "when": "2023-09-06 20:30:58.277728"}, "updated": {"by": "alexmt@chromium.org", "when": "2024-08-15 18:56:46.959493"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": null, "is_official_web_feature": null, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5097121963573248, "created": "2023-09-06 20:30:58.503022", "feature_id": 5205079858085888, "stage_type": 320, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5166199062659072, "created": "2023-09-06 20:30:58.675762", "feature_id": 5205079858085888, "stage_type": 330, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5118194415304704, "created": "2023-09-06 20:30:58.771126", "feature_id": 5205079858085888, "stage_type": 360, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAA%2BBiF%3DMBk5ra9sn9i4ajaNSd9aMFKE_9DpxE8pziGY6YXB9Mg%40mail.gmail.com", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 119, "android_first": 119, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2023-10-09 16:20:39.072295", "creator_email": "alexmt@chromium.org", "updater_email": "alexmt@chromium.org", "owner_emails": ["alexmt@chromium.org"], "editor_emails": ["johnidel@chromium.org", "edube@google.com", "ashamenon@google.com"], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["johnidel@chromium.org", "edube@google.com", "ashamenon@google.com"], "cc_recipients": [], "spec_mentors": [], "creator": "alexmt@chromium.org", "feature_type": "No developer-visible change", "feature_type_int": 2, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": 5118194415304704, "bug_url": "https://crbug.com/1481761", "launch_bug_url": "https://launch.corp.google.com/launch/4272421", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=Blink>PrivateAggregation&cc=alexmt@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": true, "confidential": false, "shipping_year": 2023, "flag_name": null, "finch_name": "Padding: PrivacySandboxAggregationServiceReportPadding All other features: PrivateAggregationApiBundledEnhancements", "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": null, "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": [], "requires_embedder_support": false, "spec_link": "https://github.com/patcg-individual-drafts/private-aggregation-api/pull/91,https://github.com/patcg-individual-drafts/private-aggregation-api/pull/90,https://github.com/patcg-individual-drafts/private-aggregation-api/pull/98,https://github.com/WICG/attribution-reporting-api/pull/1030,https://github.com/patcg-individual-drafts/private-aggregation-api/pull/103", "api_spec": false, "automation_spec": false, "interop_compat_risks": "- Null report fixes: Increases the number of reports sent to reporting endpoints, reporting endpoints using plaintext debug payloads will need to handle the null report case.\n- Debug mode eligibility changes: Backwards incompatible for callers using enableDebugMode() without third-party cookie eligibility.\n- Padding report payloads: Compatible with existing aggregation service versions. Reporting endpoints will see larger payloads and null contributions added to the plaintext debug payloads (if used).\n- Reducing delay: Should not require any reporting endpoint changes, reports will simply arrive earlier.", "all_platforms": null, "all_platforms_descr": "All but Webview", "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": null, "wpt_descr": "WPTs will be added when features are enabled", "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": "No new debug capabilities beyond the existing internals page (chrome://private-aggregation-internals) and temporary debug mode.", "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Not applicable", "tag_review_status_int": 4, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2024-08-15", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 2, "browsers": {"chrome": {"bug": "https://crbug.com/1481761", "blink_components": ["Blink>PrivateAggregation"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["alexmt@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Enabled by default", "val": 5, "milestone_str": "119"}, "announced": true, "desktop": 119, "android": 119, "webview": null, "ios": null}, "ff": {"view": {"url": "https://github.com/mozilla/standards-positions/issues/805", "notes": "We have not requested a signal for these changes specifically. The Gecko position on Shared Storage (one of the ways Private Aggregation is exposed) is negative.", "text": "Closed Without a Position", "val": 5}}, "safari": {"view": {"url": "https://github.com/WebKit/standards-positions/issues/189", "notes": "We have not requested a signal for these changes specifically", "text": "Closed Without a Position", "val": 5}}, "webdev": {"view": {"text": "Positive", "val": 2, "url": null, "notes": "Positive for reducing delay"}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://github.com/patcg-individual-drafts/private-aggregation-api/pull/91,https://github.com/patcg-individual-drafts/private-aggregation-api/pull/90,https://github.com/patcg-individual-drafts/private-aggregation-api/pull/98,https://github.com/WICG/attribution-reporting-api/pull/1030,https://github.com/patcg-individual-drafts/private-aggregation-api/pull/103", "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": true, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5190179073032192, "name": " Enrollment for Privacy Sandbox (PSB)", "summary": "As the Privacy Sandbox relevance and measurement APIs start ramping up for general availability, we want to make sure these technologies are used as intended and with transparency. \r\n\r\nThe APIs include Attribution Reporting, the Protected Audience API, Topics, Private Aggregation and Shared Storage. \r\n\r\nPSB is introducing a new Developer Enrollment process for Privacy Sandbox relevance and measurement APIs.  \r\n\r\nChrome will fetch the enrolled-sites list from the enrollment server (via component updater) and use it to gate access to the Privacy Sandbox APIs.", "markdown_fields": [], "blink_components": ["Blink"], "star_count": 67, "search_tags": [], "created": {"by": "mikipatel@google.com", "when": "2023-09-06 18:46:01.428194"}, "updated": {"by": "shivanisha@chromium.org", "when": "2023-09-08 16:31:36.704446"}, "category": "Web Components", "category_int": 1, "feature_notes": null, "web_feature": null, "is_official_web_feature": null, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5132402300551168, "created": "2023-09-06 18:46:01.663260", "feature_id": 5190179073032192, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5083354646446080, "created": "2023-09-06 18:46:01.747458", "feature_id": 5190179073032192, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/Zy6uyaTdcJ8/m/dUAlkJY-BgAJ", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5131954684428288, "created": "2023-09-06 18:46:01.927177", "feature_id": 5190179073032192, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5204823099572224, "created": "2023-09-06 18:46:02.007033", "feature_id": 5190179073032192, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5186638677803008, "created": "2023-09-06 18:46:02.091157", "feature_id": 5190179073032192, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5121226392993792, "created": "2023-09-06 18:46:02.488289", "feature_id": 5190179073032192, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/J-nlzLKZvA0/m/5QIhsgpKAwAJ", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 118, "android_first": 118, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2023-09-06 18:46:01.427901", "creator_email": "mikipatel@google.com", "updater_email": "shivanisha@chromium.org", "owner_emails": ["mikipatel@google.com", "shivanisha@chromium.org", "jkarlin@google.com"], "editor_emails": ["shivanisha@google.com", "shivanisha@chromium.org"], "cc_emails": ["shivanisha@google.com", "amitnm@google.com"], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": ["shivanisha@google.com", "shivanisha@chromium.org"], "cc_recipients": ["shivanisha@google.com", "amitnm@google.com"], "spec_mentors": [], "creator": "mikipatel@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": 5121226392993792, "bug_url": "https://crbug.com/1448875", "launch_bug_url": "https://launch.corp.google.com/launch/4260778", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=Blink&blocking=1448875&cc=mikipatel@google.com,shivanisha@chromium.org,jkarlin@google.com", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": true, "confidential": false, "shipping_year": 2023, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "It is of paramount importance to the Privacy Sandbox that we protect user privacy. This enrollment process adds an additional layer of protections on top of the structural restrictions enforced within each API, by adding transparency to who is collecting data, and mitigating attempts to misuse the APIs to gather more data than intended.\n\nTo provide auditable transparency, enrollment information about the company will be made public. We will provide further details in a later update on how the public will be able to access this information.\n\nTo limit how much data an API caller can receive, we've already incorporated rate limits for each developer into the relevance and measurement APIs. Enrollment allows us to better enforce those rate limits by using an independent, third party verification service. We will use Dun & Bradstreet to verify your corporate identity and any potential corporate linkages.\n\nThis verification process will also help ensure that one developer can't impersonate another developer and limit their usage of the APIs. Lastly, this effort brings the Privacy Sandbox Chrome and Android ecosystems to a shared enrollment process, which ensures you won't have to duplicate verification efforts across platforms.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": "Feature is available only in Chromium browsers for the foreseeable future.", "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": "https://github.com/privacysandbox/attestation/blob/main/README.md", "explainer_links": ["https://developer.chrome.com/blog/announce-enrollment-privacy-sandbox"], "requires_embedder_support": true, "spec_link": null, "api_spec": false, "automation_spec": false, "interop_compat_risks": null, "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": "None", "security_risks": null, "ergonomics_risks": null, "wpt": null, "wpt_descr": null, "webview_risks": "Not applicable", "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": "Console errors: The API surfaces gated on enrollment and attestation will output relevant console error messages if a given site is not allowed to participate/invoke those API surfaces. (Private Aggregation API-related console messages are output during its consumer API enrollment checks e.g. Shared Storage, but could be made more specific in the future).\n\nLocal override: For local testing, we are providing developer overrides with a Chrome flag and CLI switch:\n\nFlag: chrome://flags/#privacy-sandbox-enrollment-overrides\n\nCLI: --privacy-sandbox-enrollment-overrides=https://example.com,https://example.co.uk,...", "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": "Private Aggregation (https://github.com/w3ctag/design-reviews/issues/846#issuecomment-1690139513)\n\nShared Storage (https://github.com/w3ctag/design-reviews/issues/747#issuecomment-1690156498)\n\nTopics (https://github.com/w3ctag/design-reviews/issues/726#issuecomment-1690087586)\n\nAttribution reporting API (https://github.com/w3ctag/design-reviews/issues/724#issuecomment-1690076332)\n\nProtected Audience (https://github.com/w3ctag/design-reviews/issues/723#issuecomment-1690413217)", "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2023-09-08", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": "https://crbug.com/1448875", "blink_components": ["Blink"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["mikipatel@google.com", "shivanisha@chromium.org", "jkarlin@google.com"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "In development", "val": 3, "milestone_str": "In development"}, "announced": true, "desktop": 118, "android": 118, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": null, "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5089526405398528, "name": "Attribution Reporting Feature bundle: Lookback windows, flex-lite", "summary": "We plan on landing a number of changes to the Attribution Reporting API focused on:\n - registration ergonomics\n- support for developer controlled configurations that allow for callers to specify precisely the information they want out of reports, in order to more efficiently extract utility out of the privacy mechanism\n\nSpec changes\n- Allow expiry, event_report_window, aggregatable_report_window fields to be integers\n- Lookback window in filters\n- Developer defined configurations for reporting windows and maximum # of reports\n- Separate verbose debug report for start time\n- Reduce min event report window time from 1 day to 1 hour and prohibit negative durations\n", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 18, "search_tags": [], "created": {"by": "johnidel@google.com", "when": "2023-08-03 20:25:07.013298"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 09:42:11.918405"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": null, "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5158038800957440, "created": "2023-08-03 20:25:07.224057", "feature_id": 5089526405398528, "stage_type": 320, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5123527581106176, "created": "2023-08-03 20:25:07.386222", "feature_id": 5089526405398528, "stage_type": 330, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5086421009825792, "created": "2023-08-03 20:25:07.470353", "feature_id": 5089526405398528, "stage_type": 360, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/3c8f2f73-db97-4c39-9af4-c4c05539504cn%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 117, "android_first": 117, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2023-08-03 20:25:07.013000", "creator_email": "johnidel@google.com", "updater_email": "foolip@google.com", "owner_emails": ["johnidel@chromium.org"], "editor_emails": [], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": [], "cc_recipients": [], "spec_mentors": [], "creator": "johnidel@google.com", "feature_type": "No developer-visible change", "feature_type_int": 2, "intent_stage": "None", "intent_stage_int": 0, "active_stage_id": null, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=johnidel@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2023, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": null, "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": [], "requires_embedder_support": false, "spec_link": "https://wicg.github.io/attribution-reporting-api", "api_spec": false, "automation_spec": false, "interop_compat_risks": null, "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": null, "wpt_descr": null, "webview_risks": null, "devrel_emails": ["devrel-chromestatus-all@google.com"], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Not applicable", "tag_review_status_int": 4, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": null, "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["A-N/A"], "devrel": ["devrel-chromestatus-all@google.com"], "owners": ["johnidel@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "Proposed", "val": 2, "milestone_str": "Proposed"}, "announced": true, "desktop": 117, "android": 117, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://wicg.github.io/attribution-reporting-api", "maturity": {"text": null, "short_text": "Unknown status", "val": 0}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 4994430156668928, "name": "Cross App and Web Attribution Measurement", "summary": "Extends the Attribution Reporting API to allow attributing conversions that happen on the web to events that happen off the browser, within other applications.\r\n\r\nThe proposal here takes advantage of OS-level support for attribution. In particular, it gives the developer an option to allow events on the mobile web to be joinable with events in Android\u2019s Privacy Sandbox, although support for other platforms could also be implemented.", "markdown_fields": [], "blink_components": ["Blink"], "star_count": 96, "search_tags": [], "created": {"by": "linnan@chromium.org", "when": "2023-04-24 13:27:27.208346"}, "updated": {"by": "foolip@google.com", "when": "2025-08-25 13:39:27.989092"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": "", "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5150328879579136, "created": "2023-04-24 13:27:27.208346", "feature_id": 4994430156668928, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4984399965192192, "created": "2023-04-24 13:27:27.208346", "feature_id": 4994430156668928, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5337013424750592, "created": "2023-04-24 13:27:27.208346", "feature_id": 4994430156668928, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5285298059083776, "created": "2023-04-24 13:27:27.208346", "feature_id": 4994430156668928, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5150452494106624, "created": "2023-04-24 13:27:27.208346", "feature_id": 4994430156668928, "stage_type": 150, "display_name": "Cross App and Web Attribution Measurement", "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/gTvI5x-qex8", "announcement_url": null, "experiment_goals": "For experimentation with the new extension of the Attribution Reporting API, we hope to see that the measurement data made available through the API provides useful ad conversion data cross app and web.", "experiment_risks": "None", "origin_trial_id": "151996487423754241", "origin_trial_feedback_url": "https://github.com/WICG/attribution-reporting-api/issues", "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": "AttributionReportingCrossAppWeb", "ot_description": null, "ot_display_name": "Cross App and Web Attribution Measurement", "ot_documentation_url": "https://github.com/WICG/attribution-reporting-api/blob/main/app_to_web.md", "ot_emails": [], "ot_feedback_submission_url": "https://github.com/WICG/attribution-reporting-api/issues", "ot_has_third_party_support": true, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [{"id": 5191072234078208, "created": "2023-09-27 13:54:27.393361", "feature_id": 4994430156668928, "stage_type": 151, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/0drGQpsOKh0", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": "Cross app web Attribution Reporting API is currently enabled on Android T+ devices on the following platforms/channels:\nAndroid: Canary/Dev (50%), Beta (50%), Stable (99%)\nAndroid WebView: Canary/Dev (50%), Beta (50%), Stable (10%)\n\nThe Android API itself is available on 90% on Android T.\n\nCurrently the page load for the Cross App Web Attribution Reporting API is at 0.0128%, which we feel also mitigates burn-in risk.\n\nThe experiment on Android WebView is still being ramped up with a few planned enhancements. We plan to start the experiment on Android S and R devices soon as well. \n\nGiven the complexity of using the new Web API in conjunction with the new Android APIs, partner testing has taken longer than expected. With this extension, we hope to get additional data on the usefulness of this API and insights into any issues in the system.", "ot_stage_id": 5150452494106624, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": 122, "android_last": 122, "ios_last": null, "webview_last": 122}], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": 0, "enterprise_policies": [], "desktop_first": 114, "android_first": 114, "ios_first": null, "webview_first": 116, "desktop_last": 122, "android_last": 122, "ios_last": null, "webview_last": 122, "ot_setup_status": 6}, {"id": 6067584140574720, "created": "2023-04-24 13:27:27.208346", "feature_id": 4994430156668928, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CA%2BVrgP%3DZDhgDguTkPXBnPOk8CpOVkxKHyBoeUR9%3D43c7p6wZuw%40mail.gmail.com", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 123, "android_first": 123, "ios_first": null, "webview_first": 123, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": "2024-02-05 15:21:38.161312", "creator_email": "linnan@chromium.org", "updater_email": "foolip@google.com", "owner_emails": ["johnidel@chromium.org", "csharrison@chromium.org", "linnan@chromium.org"], "editor_emails": [], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": [], "cc_recipients": [], "spec_mentors": [], "creator": "linnan@chromium.org", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "Origin Trial", "intent_stage_int": 3, "active_stage_id": 6067584140574720, "bug_url": null, "launch_bug_url": "https://launch.corp.google.com/launch/4238495", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=Blink&cc=johnidel@chromium.org,csharrison@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2024, "flag_name": "privacy-sandbox-ads-apis", "finch_name": null, "non_finch_justification": null, "ongoing_constraints": "None", "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "Currently, the Attribution Reporting API supports attributing events within a single browser instance. This proposal expands the scope of attribution to allow attributing conversions that happen on the web to events that happen off the browser, within other applications.", "devtrial_instructions": null, "activation_risks": "", "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/attribution-reporting-api/blob/main/app_to_web.md"], "requires_embedder_support": false, "spec_link": "https://wicg.github.io/attribution-reporting-api", "api_spec": false, "automation_spec": false, "interop_compat_risks": "", "all_platforms": false, "all_platforms_descr": "", "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": "", "ergonomics_risks": "", "wpt": false, "wpt_descr": "", "webview_risks": null, "devrel_emails": [], "debuggability": "", "doc_links": ["https://docs.google.com/document/d/137lLI8Gr3gMZWSzffnkwgF0pUpVm4jbPL02O7KLh5kk/edit?resourcekey=0-52bI6HAaA1dZmT3NWP1tvg"], "sample_links": [], "prefixed": false, "tags": [], "tag_review": "https://github.com/w3ctag/design-reviews/issues/724", "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-25", "resources": {"samples": [], "docs": ["https://docs.google.com/document/d/137lLI8Gr3gMZWSzffnkwgF0pUpVm4jbPL02O7KLh5kk/edit?resourcekey=0-52bI6HAaA1dZmT3NWP1tvg"]}, "comments": "", "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["Blink"], "devrel": [], "owners": ["johnidel@chromium.org", "csharrison@chromium.org", "linnan@chromium.org"], "origintrial": true, "prefixed": false, "flag": false, "status": {"text": "Origin trial", "val": 8, "milestone_str": "123"}, "announced": true, "desktop": 123, "android": 123, "webview": 123, "ios": null}, "ff": {"view": {"url": null, "notes": "", "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": "", "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": ""}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": ""}}}, "standards": {"spec": "https://wicg.github.io/attribution-reporting-api", "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": true, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5743412790689792, "name": "Private Aggregation API", "summary": "A generic mechanism for measuring aggregate, cross-site data in a privacy preserving manner. The potentially identifying cross-site data is encapsulated into \"aggregatable reports\". To prevent leakage, this data is encrypted, ensuring it can only be processed by the aggregation service. During processing, this service will add noise and impose limits on how many queries can be performed.\r\n", "markdown_fields": [], "blink_components": ["Blink>PrivateAggregation"], "star_count": 51, "search_tags": [], "created": {"by": "alexmt@google.com", "when": "2022-01-31 23:43:15.759026"}, "updated": {"by": "alexmt@chromium.org", "when": "2024-08-15 18:54:11.287701"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": "", "web_feature": null, "is_official_web_feature": null, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5479690802823168, "created": "2022-01-31 23:43:15.759026", "feature_id": 5743412790689792, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5867015516979200, "created": "2022-01-31 23:43:15.759026", "feature_id": 5743412790689792, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAA%2BBiFkKSt4YBNUn2h42G3z%2BqjwxjFAo%3DsPnrbvvOoNaDa_aAQ%40mail.gmail.com", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6228857921732608, "created": "2022-01-31 23:43:15.759026", "feature_id": 5743412790689792, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5796532956168192, "created": "2022-01-31 23:43:15.759026", "feature_id": 5743412790689792, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5478913682178048, "created": "2022-01-31 23:43:15.759026", "feature_id": 5743412790689792, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAA%2BBiF%3DKQYXEVn%3DB4rMabH14UdYyA%2BF8qQkWyUVPB0rypS1N0Q%40mail.gmail.com", "announcement_url": null, "experiment_goals": "The goal for the experiment is to seek feedback on the utility of the aggregated measurement available through the API and whether it satisfies the expected use cases for reporting from FLEDGE and Shared Storage worklets.", "experiment_risks": "", "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 107, "android_first": 107, "ios_first": null, "webview_first": 107, "desktop_last": 115, "android_last": 115, "ios_last": null, "webview_last": 115}, {"id": 4946813941972992, "created": "2022-01-31 23:43:15.759026", "feature_id": 5743412790689792, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAA%2BBiFk4cb%2Bi69Symy-KCjHbtquGSQCn5scXy_YMSSWGut2vJw%40mail.gmail.com", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 115, "android_first": 115, "ios_first": null, "webview_first": 115, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": null, "creator_email": "alexmt@google.com", "updater_email": "alexmt@chromium.org", "owner_emails": ["alexmt@chromium.org"], "editor_emails": ["johnidel@chromium.org", "edube@google.com", "ashamenon@google.com"], "cc_emails": [], "spec_mentor_emails": ["yoavweiss@chromium.org"], "unlisted": false, "deleted": false, "editors": ["johnidel@chromium.org", "edube@google.com", "ashamenon@google.com"], "cc_recipients": [], "spec_mentors": ["yoavweiss@chromium.org"], "creator": "alexmt@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "Prepare to ship", "intent_stage_int": 5, "active_stage_id": 4946813941972992, "bug_url": "https://crbug.com/1316659", "launch_bug_url": "https://crbug.com/1292756", "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=Blink>PrivateAggregation&cc=alexmt@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2023, "flag_name": "privacy-sandbox-ads-apis", "finch_name": null, "non_finch_justification": null, "ongoing_constraints": "None", "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "Relative to cross-site data from each user, aggregate, noisy data can leak less information about individual users, and yet would be sufficient for a wide range of use cases that rely on third-party cookies today. An aggregation service has been proposed to allow reporting noisy, aggregated cross-site data. This service was originally proposed for use by the Attribution Reporting API, but allowing more general aggregation would support additional use cases.", "devtrial_instructions": null, "activation_risks": "", "measurement": "", "availability_expectation": "We intend to start an incremental ramp towards 100% in Stable starting with M115.", "adoption_expectation": "", "adoption_plan": "", "initial_public_proposal_url": null, "explainer_links": ["https://github.com/patcg-individual-drafts/private-aggregation-api"], "requires_embedder_support": false, "spec_link": "https://patcg-individual-drafts.github.io/private-aggregation-api", "api_spec": false, "automation_spec": false, "interop_compat_risks": "", "all_platforms": false, "all_platforms_descr": "All but WebView", "non_oss_deps": "", "anticipated_spec_changes": "A few changes to current behavior are expected including tying debug mode to third-party cookie eligibility and padding the encrypted payload. Extensions to the API to support multiple aggregation services, enable Protected Audience report verification, and allow arrays of contributions are also expected and are purely additive. The JS interface for all of these changes will be backwards compatible with the current API.", "security_risks": "", "ergonomics_risks": "", "wpt": false, "wpt_descr": "Reports sent through the API are subject to large delays and require overriding a public key endpoint. Some end-to-end tests are currently internal web tests. Where possible, tests are external and we are proposing new WebDriver APIs to support testing via web-platform-tests. Tests for the integration with Protected Audience are in-progress and should land soon.", "webview_risks": "No", "devrel_emails": [], "debuggability": "The proposal includes a temporary debugging mechanism to facilitate testing and integration. An internals page (chrome://private-aggregation-internals) is also available to view the status of pending and sent reports.", "doc_links": [], "sample_links": [], "prefixed": false, "tags": [], "tag_review": "https://github.com/w3ctag/design-reviews/issues/846", "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2024-08-15", "resources": {"samples": [], "docs": []}, "comments": "", "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": "https://crbug.com/1316659", "blink_components": ["Blink>PrivateAggregation"], "devrel": [], "owners": ["alexmt@chromium.org"], "origintrial": false, "prefixed": false, "flag": false, "status": {"text": "Enabled by default", "val": 5, "milestone_str": "115"}, "announced": true, "desktop": 115, "android": 115, "webview": 115, "ios": null}, "ff": {"view": {"url": "https://github.com/mozilla/standards-positions/issues/805", "notes": "No signal specific to Private Aggregation. However the Gecko position on Shared Storage (one of the ways Private Aggregation is exposed) was negative.", "text": "Closed Without a Position", "val": 5}}, "safari": {"view": {"url": "https://github.com/WebKit/standards-positions/issues/189", "notes": "", "text": "Closed Without a Position", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": "Developers have shown interest in the API both for cross-site use cases through Shared Storage and for Protected Audience aggregate reporting and have engaged on GitHub[1]. For Shared Storage, multiple testers have publicly flagged their interest via the public Shared Storage Testers List [2]. \r\n\r\n[1] https://github.com/patcg-individual-drafts/private-aggregation-api/issues \r\n[2] https://github.com/WICG/shared-storage/blob/main/shared-storage-tester-list.md "}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": ""}}}, "standards": {"spec": "https://patcg-individual-drafts.github.io/private-aggregation-api", "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": true, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5762222527610880, "name": "Attribution Reporting: support for aggregate reports", "summary": "Extends the Attribution Reporting API to support a mechanism for generating and sending reports in a way that reporting endpoints can only learn aggregate data, not any data associated with a particular click or user.\r\n\r\nThis proposal allows a site to specify reports they want to aggregate within an isolated worklet environment. These reports can later be forwarded to a set of aggregation services which generate usable reports and can apply differentially private noise.", "markdown_fields": [], "blink_components": ["Blink"], "star_count": 54, "search_tags": [], "created": {"by": "johnidel@google.com", "when": "2021-05-10 17:32:41.028264"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 09:42:13.789604"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": "", "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 6468694807412736, "created": "2021-05-10 17:32:41.028264", "feature_id": 5762222527610880, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6003344898785280, "created": "2021-05-10 17:32:41.028264", "feature_id": 5762222527610880, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5244175069478912, "created": "2021-05-10 17:32:41.028264", "feature_id": 5762222527610880, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5936977514332160, "created": "2021-05-10 17:32:41.028264", "feature_id": 5762222527610880, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5579095606296576, "created": "2021-05-10 17:32:41.028264", "feature_id": 5762222527610880, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4642420080246784, "created": "2021-05-10 17:32:41.028264", "feature_id": 5762222527610880, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": null, "creator_email": "johnidel@google.com", "updater_email": "foolip@google.com", "owner_emails": ["johnidel@chromium.org", "csharrison@chromium.org"], "editor_emails": [], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": [], "cc_recipients": [], "spec_mentors": [], "creator": "johnidel@google.com", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "Start prototyping", "intent_stage_int": 1, "active_stage_id": 6003344898785280, "bug_url": null, "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=Blink&cc=johnidel@chromium.org,csharrison@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": null, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": null, "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "There are numerous web ad measurement use-cases which cannot be supported by the event-level reports provided in the existing Attribution Reporting API proposal[1].\r\n\r\nBy sending aggregated data, we can provide meaningful privacy protections while allowing for higher fidelity measurement of attribution-trigger data to be received at a faster rate alongside event-level reports.", "devtrial_instructions": null, "activation_risks": null, "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/conversion-measurement-api/blob/main/AGGREGATE.md"], "requires_embedder_support": false, "spec_link": "https://wicg.github.io/conversion-measurement-api", "api_spec": false, "automation_spec": false, "interop_compat_risks": null, "all_platforms": null, "all_platforms_descr": null, "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": null, "ergonomics_risks": null, "wpt": null, "wpt_descr": null, "webview_risks": null, "devrel_emails": [], "debuggability": null, "doc_links": [], "sample_links": [], "prefixed": null, "tags": [], "tag_review": null, "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": "", "ff_views": 5, "safari_views": 5, "web_dev_views": 4, "browsers": {"chrome": {"bug": null, "blink_components": ["Blink"], "devrel": [], "owners": ["johnidel@chromium.org", "csharrison@chromium.org"], "origintrial": false, "prefixed": null, "flag": false, "status": {"text": "No active development", "val": 1, "milestone_str": "No active development"}, "announced": false, "desktop": null, "android": null, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": null, "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "No signals", "val": 4, "url": null, "notes": null}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://wicg.github.io/conversion-measurement-api", "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": false, "is_enterprise_feature": false, "experiment_timeline": null, "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 5712483207610368, "name": "Layout Instability Shifted Element Surfacing", "summary": "Extends the layout instability API with information about specific DOM element(s) that experienced a shift.", "markdown_fields": [], "blink_components": ["Blink"], "star_count": 45, "search_tags": [], "created": {"by": "skobes@chromium.org", "when": "2020-05-14 17:12:30.625893"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 11:24:17.574934"}, "category": "Performance", "category_int": 13, "feature_notes": "", "web_feature": "layout-instability", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 4976735106367488, "created": "2020-05-14 17:12:30.625893", "feature_id": 5712483207610368, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6752603413676032, "created": "2020-05-14 17:12:30.625893", "feature_id": 5712483207610368, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msg/blink-dev/SxtAa7lj3nw/UpVagPRbAwAJ", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5038705975230464, "created": "2020-05-14 17:12:30.625893", "feature_id": 5712483207610368, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6181135204220928, "created": "2020-05-14 17:12:30.625893", "feature_id": 5712483207610368, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 6223226682736640, "created": "2020-05-14 17:12:30.625893", "feature_id": 5712483207610368, "stage_type": 150, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": "", "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5623678641897472, "created": "2020-05-14 17:12:30.625893", "feature_id": 5712483207610368, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/18PUl8RwgHg/m/JHmpT47lAQAJ", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 84, "android_first": 84, "ios_first": null, "webview_first": 84, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": null, "creator_email": "skobes@chromium.org", "updater_email": "foolip@google.com", "owner_emails": ["skobes@chromium.org"], "editor_emails": [], "cc_emails": [], "spec_mentor_emails": [], "unlisted": false, "deleted": false, "editors": [], "cc_recipients": [], "spec_mentors": [], "creator": "skobes@chromium.org", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "Shipped", "intent_stage_int": 8, "active_stage_id": 5623678641897472, "bug_url": "https://bugs.chromium.org/p/chromium/issues/detail?id=1053510", "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=Blink&cc=skobes@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2020, "flag_name": null, "finch_name": null, "non_finch_justification": null, "ongoing_constraints": "", "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "", "devtrial_instructions": null, "activation_risks": "None perceived.", "measurement": null, "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/layout-instability/blob/master/README.md#source-attribution"], "requires_embedder_support": false, "spec_link": "https://wicg.github.io/layout-instability/", "api_spec": false, "automation_spec": false, "interop_compat_risks": "No significant compat risk.  This feature adds a new attribute to an existing interface.\r\n\r\nSome interop risk if other browsers do not implement.", "all_platforms": true, "all_platforms_descr": "Supported on all platforms.", "non_oss_deps": null, "anticipated_spec_changes": null, "security_risks": "See https://wicg.github.io/layout-instability/#priv-sec for security and privacy considerations of the layout instability API, which are not meaningfully altered by source attribution.", "ergonomics_risks": "None perceived.", "wpt": true, "wpt_descr": "https://wpt.fyi/results/layout-instability (sources*.html)", "webview_risks": null, "devrel_emails": [], "debuggability": "This feature does not require changes to devtools, though we are hoping to add support for source attribution to the Performance panel, which would complement the API.", "doc_links": ["https://github.com/WICG/layout-instability/blob/master/README.md#source-attribution"], "sample_links": [], "prefixed": false, "tags": [], "tag_review": "https://github.com/w3ctag/design-reviews/issues/485", "tag_review_status": "Issues addressed", "tag_review_status_int": 3, "security_review_status": "Pending", "security_review_status_int": 1, "privacy_review_status": "Pending", "privacy_review_status_int": 1, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": ["https://github.com/WICG/layout-instability/blob/master/README.md#source-attribution"]}, "comments": "", "ff_views": 5, "safari_views": 5, "web_dev_views": 1, "browsers": {"chrome": {"bug": "https://bugs.chromium.org/p/chromium/issues/detail?id=1053510", "blink_components": ["Blink"], "devrel": [], "owners": ["skobes@chromium.org"], "origintrial": false, "prefixed": false, "flag": false, "status": {"text": "Enabled by default", "val": 5, "milestone_str": "84"}, "announced": true, "desktop": 84, "android": 84, "webview": 84, "ios": null}, "ff": {"view": {"url": null, "notes": "", "text": "No signal", "val": 5}}, "safari": {"view": {"url": null, "notes": "", "text": "No signal", "val": 5}}, "webdev": {"view": {"text": "Strongly positive", "val": 1, "url": "https://github.com/WICG/layout-instability/issues/11", "notes": "\"Gaining access to at least some of the attribution of the shifts would be very useful for anyone that is using the API or reporting on something like CLS.\""}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": null}}}, "standards": {"spec": "https://wicg.github.io/layout-instability/", "maturity": {"text": "Specification currently under development in a Working Group", "short_text": "Working draft", "val": 4}}, "is_released": true, "is_enterprise_feature": false, "experiment_timeline": "", "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}, {"id": 6412002824028160, "name": "Attribution Reporting API", "summary": "This API measures ad conversions (e.g. purchases) and attributes them to ad interactions without using cross-site persistent identifiers like third-party cookies. \r\n\r\n\r\nThe API allows measurement through both event-level reports sent directly from the browser, and aggregatable reports which can be processed through a trusted service to create summary reports of attribution data.\r\n\r\n\r\nAn earlier version of this API was in Origin Trial from Chrome 86 through Chrome 97 which only supported click-through ", "markdown_fields": [], "blink_components": ["A-N/A"], "star_count": 156, "search_tags": [], "created": {"by": "csharrison@chromium.org", "when": "2019-10-15 18:51:59.587610"}, "updated": {"by": "foolip@google.com", "when": "2025-08-22 06:59:11.822863"}, "category": "Miscellaneous", "category_int": 2, "feature_notes": "", "web_feature": "attribution-reporting", "is_official_web_feature": true, "webdx_usecounter_enum": null, "enterprise_feature_categories": [], "enterprise_product_category": 0, "is_releasenotes_content_reviewed": false, "is_releasenotes_publish_ready": false, "stages": [{"id": 5048617021210624, "created": "2019-10-15 18:51:59.587610", "feature_id": 6412002824028160, "stage_type": 110, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5008897627127808, "created": "2019-10-15 18:51:59.587610", "feature_id": 6412002824028160, "stage_type": 120, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/7B0ldtZR_68/m/GjLBu0n4DgAJ", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5409103686402048, "created": "2019-10-15 18:51:59.587610", "feature_id": 6412002824028160, "stage_type": 130, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 4840151925129216, "created": "2019-10-15 18:51:59.587610", "feature_id": 6412002824028160, "stage_type": 140, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": null, "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}, {"id": 5459990727360512, "created": "2019-10-15 18:51:59.587610", "feature_id": 6412002824028160, "stage_type": 150, "display_name": "Conversion Measurement", "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/jEnNpideO1Y/m/nlEDdjmnCgAJ", "announcement_url": null, "experiment_goals": "For experimentation with the new iteration of the API, we hope to see that the measurement data made available through the API provides useful ad conversion data for existing use-cases.\r\n\r\n\r\nGoals specific to this iteration of the API:\r\n\r\nWe hope to see that support for measuring non-clicked ads in the API provides better coverage of existing cookie based attribution measurement solutions, compared to the earlier version of the API.\r\n\r\nWe hope to see that aggregatable reports complement event-level reports and support robust reporting of attributions.\r\n\r\nWe would like to see if the flexibility by the new filtering mechanisms allows more useful reporting compared to the earlier version of the API.\r\n\r\nThe origin trial for this experiment will be shared among various Privacy Sandbox APIs. Our goal is to allow for co-ordinated experiments to be run by multiple different sites, across multiple APIs in one OT.\r\n\r\n\r\nThis shared origin trial, Privacy Sandbox Ads APIs, will be a third-party origin trial. To ensure that developers can run coordinated experiments without concern for exceeding page load usage thresholds, this Origin Trial will be available for a subset of users by default. Therefore, it will be necessary to feature test to ensure that the API surface you want to use is available after providing your OT token. A second advantage of this configuration is that different experimenters will experiment with the same users, which enables coordination for APIs.", "experiment_risks": "", "origin_trial_id": "3411476717733150721", "origin_trial_feedback_url": "https://github.com/WICG/conversion-measurement-api/issues", "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": "ConversionMeasurement", "ot_description": null, "ot_display_name": "Conversion Measurement", "ot_documentation_url": "https://github.com/WICG/conversion-measurement-api", "ot_emails": [], "ot_feedback_submission_url": "https://github.com/WICG/conversion-measurement-api/issues", "ot_has_third_party_support": true, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [{"id": 6211378948341760, "created": "2019-10-15 18:51:59.587610", "feature_id": 6412002824028160, "stage_type": 151, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/g/blink-dev/c/jEnNpideO1Y/m/nlEDdjmnCgAJ", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": "", "ot_stage_id": 5459990727360512, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": null, "android_first": null, "ios_first": null, "webview_first": null, "desktop_last": 107, "android_last": 107, "ios_last": null, "webview_last": null}], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": 0, "enterprise_policies": [], "desktop_first": 101, "android_first": 101, "ios_first": null, "webview_first": null, "desktop_last": 115, "android_last": 115, "ios_last": null, "webview_last": null, "ot_setup_status": 6}, {"id": 6098248368914432, "created": "2019-10-15 18:51:59.587610", "feature_id": 6412002824028160, "stage_type": 160, "display_name": null, "pm_emails": [], "tl_emails": [], "ux_emails": [], "te_emails": [], "intent_thread_url": "https://groups.google.com/a/chromium.org/d/msgid/blink-dev/9402d8f1-1700-4eb3-8709-eaba907784aen%40chromium.org", "announcement_url": null, "experiment_goals": null, "experiment_risks": null, "origin_trial_id": null, "origin_trial_feedback_url": null, "ot_action_requested": false, "ot_approval_buganizer_component": null, "ot_approval_buganizer_custom_field_id": null, "ot_approval_criteria_url": null, "ot_approval_group_email": null, "ot_chromium_trial_name": null, "ot_description": null, "ot_display_name": null, "ot_documentation_url": null, "ot_emails": [], "ot_feedback_submission_url": null, "ot_has_third_party_support": false, "ot_is_critical_trial": false, "ot_is_deprecation_trial": false, "ot_owner_email": null, "ot_requester_email": null, "ot_require_approvals": false, "ot_use_counter_bucket_number": null, "ot_webfeature_use_counter": null, "extensions": [], "experiment_extension_reason": null, "ot_stage_id": null, "finch_url": null, "rollout_milestone": null, "rollout_platforms": [], "rollout_details": null, "rollout_impact": 2, "rollout_stage_plan": null, "enterprise_policies": [], "desktop_first": 115, "android_first": 115, "ios_first": null, "webview_first": null, "desktop_last": null, "android_last": null, "ios_last": null, "webview_last": null}], "accurate_as_of": null, "creator_email": "csharrison@chromium.org", "updater_email": "foolip@google.com", "owner_emails": ["johnidel@chromium.org", "apaseltiner@chromium.org", "linnan@chromium.org"], "editor_emails": ["johnidel@google.com"], "cc_emails": [], "spec_mentor_emails": ["jyasskin@chromium.org"], "unlisted": false, "deleted": false, "editors": ["johnidel@google.com"], "cc_recipients": [], "spec_mentors": ["jyasskin@chromium.org"], "creator": "csharrison@chromium.org", "feature_type": "New or changed feature", "feature_type_int": 0, "intent_stage": "Origin Trial", "intent_stage_int": 3, "active_stage_id": 5459990727360512, "bug_url": "https://bugs.chromium.org/p/chromium/issues/detail?id=1014604", "launch_bug_url": null, "new_crbug_url": "https://bugs.chromium.org/p/chromium/issues/entry?components=A-N/A&cc=johnidel@chromium.org,apaseltiner@chromium.org,linnan@chromium.org", "screenshot_links": [], "first_enterprise_notification_milestone": null, "enterprise_impact": 1, "breaking_change": false, "confidential": false, "shipping_year": 2023, "flag_name": "", "finch_name": null, "non_finch_justification": null, "ongoing_constraints": "None.", "rollout_plan": 0, "rollout_plan_displayname": "Will ship enabled for all users", "motivation": "Currently, the web ad industry measures conversions via identifiers they can associate across sites. These identifiers tie information about which ads were clicked to information about activity on the advertiser's site (the conversion). This allows advertisers to measure ROI, and for the entire ads ecosystem to understand how well ads perform.\r\n\r\nSince the ads industry today uses common identifiers across advertiser and publisher sites to track conversions, these common identifiers can be used to enable other forms of cross-site tracking.\r\n\r\nThis doesn\u2019t have to be the case, though, especially in cases where identifiers like third party cookies are either unavailable or undesirable. A new API surface can be added to the web platform to satisfy this use-case without them, in a way that provides better privacy to users.\r\n", "devtrial_instructions": "https://developer.chrome.com/docs/privacy-sandbox/attribution-reporting/", "activation_risks": "A successful API flow involves registering multiple events across multiple different navigations/\r\n\r\npages. API reports contain either coarse or encrypted information that can be difficult to compare directly with cookie-based measurement. The current proposal includes a debugging mode to facilitate testing and integration.", "measurement": "", "availability_expectation": null, "adoption_expectation": null, "adoption_plan": null, "initial_public_proposal_url": null, "explainer_links": ["https://github.com/WICG/conversion-measurement-api/blob/main/EVENT.md", "https://github.com/WICG/conversion-measurement-api/blob/main/AGGREGATE.md", "https://github.com/WICG/conversion-measurement-api/blob/main/AGGREGATION_SERVICE_TEE.md"], "requires_embedder_support": false, "spec_link": "https://wicg.github.io/conversion-measurement-api", "api_spec": false, "automation_spec": false, "interop_compat_risks": " There are several other different attribution measurement proposals from a variety of browser vendors\r\n\r\n                 and companies, each offering different forms of privacy and utility:\r\n\r\n\r\nSafari has proposed and implemented Private Click Measurement.\r\n\r\nMozilla has proposed Interoperable Private Attribution.\r\n\r\nMicrosoft has proposed MaskedLark.\r\n\r\n\r\nFor general discussion and feedback see: https://github.com/patcg/meetings/tree/main/2022/02/09-telecon", "all_platforms": false, "all_platforms_descr": "", "non_oss_deps": "", "anticipated_spec_changes": null, "security_risks": "", "ergonomics_risks": "N/A", "wpt": false, "wpt_descr": "We intend to test this with Web Platform Tests", "webview_risks": "", "devrel_emails": [], "debuggability": "The proposal includes a debugging mode to facilitate testing and integration, which was a common theme of feedback in the first Origin Trial.", "doc_links": [], "sample_links": [], "prefixed": false, "tags": [], "tag_review": "https://github.com/w3ctag/design-reviews/issues/418", "tag_review_status": "Pending", "tag_review_status_int": 1, "security_review_status": "Issues addressed", "security_review_status_int": 3, "privacy_review_status": "Issues addressed", "privacy_review_status_int": 3, "security_continuity_id": null, "security_launch_issue_id": null, "updated_display": "2025-08-22", "resources": {"samples": [], "docs": []}, "comments": "", "ff_views": 5, "safari_views": 7, "web_dev_views": 2, "browsers": {"chrome": {"bug": "https://bugs.chromium.org/p/chromium/issues/detail?id=1014604", "blink_components": ["A-N/A"], "devrel": [], "owners": ["johnidel@chromium.org", "apaseltiner@chromium.org", "linnan@chromium.org"], "origintrial": false, "prefixed": false, "flag": false, "status": {"text": "Enabled by default", "val": 5, "milestone_str": "115"}, "announced": true, "desktop": 115, "android": 115, "webview": null, "ios": null}, "ff": {"view": {"url": null, "notes": "No official position, concerns raised in PATCG\r\n", "text": "No signal", "val": 5}}, "safari": {"view": {"url": "https://www.w3.org/2019/09/18-ad-privacy-minutes.html", "notes": "", "text": "Negative", "val": 7}}, "webdev": {"view": {"text": "Positive", "val": 2, "url": null, "notes": "Engagement in previous origin trial\r\n"}}, "other": {"view": {"text": null, "val": null, "url": null, "notes": ""}}}, "standards": {"spec": "https://wicg.github.io/conversion-measurement-api", "maturity": {"text": "Specification being incubated in a Community Group", "short_text": "Incubation", "val": 3}}, "is_released": true, "is_enterprise_feature": false, "experiment_timeline": "", "ai_test_eval_report": null, "ai_test_eval_run_status": null, "ai_test_eval_status_timestamp": null}]}