RESOLVED FIXED311895
[Site Isolation] Rewrite proper-nested-upgrades.html to not depend on frame load callback ordering 
https://bugs.webkit.org/show_bug.cgi?id=311895
Summary [Site Isolation] Rewrite proper-nested-upgrades.html to not depend on frame l...
roberto_rodriguez2
Reported 2026-04-09 19:32:11 PDT
Layout test http/tests/security/contentSecurityPolicy/upgrade-insecure-requests/proper-nested-upgrades.html currently uses dumpFrameLoadCallbacks() which produces ordering-dependent output. With site isolation, child frames in a separate process complete their load callbacks before the main frame's process receives the cross-process completion notification, changing the expected callback order from non-site isolation behavior. However, the actual CSP upgrade behavior works correctly. Rewrite the test to verify upgrade behavior directly using postMessage without relying on callback order observations.
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Radar WebKit Bug Importer
Comment 1 2026-04-09 19:32:17 PDT
<rdar://problem/174459705>
roberto_rodriguez2
Comment 2 2026-04-09 19:40:31 PDT
Pull request: https://github.com/WebKit/WebKit/pull/62411
EWS
Comment 3 2026-04-13 17:54:39 PDT
Committed 311152@main (15a901280e38): <https://commits.webkit.org/311152@main> Reviewed commits have been landed. Closing PR #62411 and removing active labels.
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