[wp-trac] [WordPress Trac] #64766: Media: Use Document-Isolation-Policy for cross-origin isolation on Chromium 137+.
WordPress Trac
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Thu Mar 5 12:07:40 UTC 2026
#64766: Media: Use Document-Isolation-Policy for cross-origin isolation on Chromium
137+.
-----------------------------+------------------------------
Reporter: adamsilverstein | Owner: adamsilverstein
Type: defect (bug) | Status: closed
Priority: normal | Milestone: 7.0
Component: Editor | Version: trunk
Severity: normal | Resolution: fixed
Keywords: has-patch | Focuses:
-----------------------------+------------------------------
Changes (by adamsilverstein):
* status: assigned => closed
* resolution: => fixed
Comment:
In [changeset:"61844" 61844]:
{{{
#!CommitTicketReference repository="" revision="61844"
Media: Use Document-Isolation-Policy for cross-origin isolation.
Replace COEP/COOP headers with Document-Isolation-Policy (DIP) for cross-
origin isolation in the block editor. DIP enables sharedBufferArray while
avoiding the breakage COEP/COOP caused for third-party plugins whose
iframes lost credentials and DOM access. Non supporting browsers have the
client-side media feature disabled by default - falling back to the
existing server side processing - to avoid a degraded editor experience.
Developed in https://github.com/WordPress/wordpress-develop/pull/11098
Props adamsilverstein, westonruter, manhar, swissspidy, mukesh27.
Fixes #64766.
}}}
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Ticket URL: <https://core.trac.wordpress.org/ticket/64766#comment:14>
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