)]}'
{"id": 5113419982307328, "name": "WebRTC Datachannel: Always negotiate data channels", "summary": "Implements a WebRTC extension alwaysNegotiateDataChannels which defines a way for the application to negotiate data channels in the SDP offer before creating a datachannel. This also negotiates the data m= section before any audio or video m sections and uses it as the \"offerer-tagged m= section\" for [BUNDLE].\n\nThis means that\n  const pc = new RTCPeerConnection({\n    alwaysNegotiateDataChannels: true});\n  const offer = await pc.createOffer();\n\nwill create an offer with an application m-line in the SDP and that\n\n  const pc = new RTCPeerConnection({\n    alwaysNegotiateDataChannels: true});\n  pc.addTranceiver('audio');\n  pc.createDataChannel('somechannel');\n  const offer = await pc.createOffer();\n\nwill create an offer that negotiates an application m-line follow by an audio m-line in the SDP.", "markdown_fields": [], "blink_components": ["Blink>WebRTC"], "star_count": 71, "search_tags": [], "created": {"by": "hta@chromium.org", "when": "2026-01-12 11:44:11.811766"}, "updated": {"by": "philipp.hancke@googlemail.com", "when": "2026-04-13 09:46:35.369557"}, "category": "WebRTC", "category_int": 18, "feature_notes": null, "web_feature": "Missing 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