RESOLVED DUPLICATE of bug 228755 210481
Cross-Origin Embedder Policy 
https://bugs.webkit.org/show_bug.cgi?id=210481
Summary Cross-Origin Embedder Policy
yhirano
Reported 2020-04-14 00:39:58 PDT
Tentatively specified at https://wicg.github.io/cross-origin-embedder-policy/ (I'm now merging the spec to the HTML and the fetch specs). The feature can be enabled by the "cross-origin-embedder-policy" HTTP header, and when enabled, sub resource requests initiated by the document (or worker) requires the CORP check.
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Radar WebKit Bug Importer
Comment 1 2020-04-14 17:52:48 PDT
<rdar://problem/61799661>
sideshowbarker
Comment 2 2021-02-16 18:48:14 PST
Note that this is now part of the HTML standard: https://html.spec.whatwg.org/multipage/origin.html#coep …and Firefox and Chrome have both shipped support for it: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Embedder-Policy#browser_compatibility
Brent Fulgham
Comment 3 2022-03-08 10:58:41 PST
*** This bug has been marked as a duplicate of bug 228755 ***
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