The Mixed Content specification describes how a user agent should handle fetching of unsecure content from a secure context. For that purpose, Chrome currently treats any blob: and filesystem: content as secure although the spec says their origin should be checked instead (i.e. blob://https://... is secure but blob://http://... is not). This change is about making the mixed content checker follow this stricter behavior.


- Alignment with the specification - Stricter security


Specification link

Specification being incubated in a Community Group

Status in Chromium


No active development (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • No signal
  • No signal
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Last updated on 2021-04-30