[wp-trac] [WordPress Trac] #64766: Media: Use Document-Isolation-Policy for cross-origin isolation on Chromium 137+.

WordPress Trac noreply at wordpress.org
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.
 }}}

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/64766#comment:14>
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