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.

Motivation

- Alignment with the specification - Stricter security

Specification

Editor's draft

Status in Chromium

Blink>SecurityFeature>SecureContexts


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.

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Owner

Last updated on 2021-02-01