[wp-trac] [WordPress Trac] #64740: credentialless iframe incompatible with some browsers and cross-origin policies

[WordPress Trac]

#64740: credentialless iframe incompatible with some browsers and cross-origin
policies
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 Reporter:  amykamala     |       Owner:  adamsilverstein
     Type:  defect (bug)  |      Status:  reviewing
 Priority:  normal        |   Milestone:  7.0
Component:  Editor        |     Version:
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:
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Comment (by MadtownLems):

 > Do you see any notices in the console?

 I don't believe I did with earlier Betas, but now my console is full of:
 [Violation] Permissions policy violation: unload is not allowed in this
 document

 > can you try disabling the feature
 That absolutely removes the lag! (though the console [Violations] are
 still there)

 Happy to investigate further - just let me know! Thanks for continuing to
 explore this.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64740#comment:33>
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