RESOLVED FIXED309619
REGRESSION(308928@main): imported/w3c/web-platform-tests/fullscreen/rendering/backdrop-object.html is [ Pass Timeout ImageOnlyFailure ] recently 
https://bugs.webkit.org/show_bug.cgi?id=309619
Summary REGRESSION(308928@main): imported/w3c/web-platform-tests/fullscreen/rendering...
Fujii Hironori
Reported 2026-03-10 17:05:02 PDT
REGRESSION: imported/w3c/web-platform-tests/fullscreen/rendering/backdrop-object.html is [ Pass Timeout ImageOnlyFailure ] recently History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Ffullscreen%2Frendering%2Fbackdrop-object.html Apple-Sequoia-Debug-WK2-Tests 308928@main is the first failure (ImageOnlyFailure). No green box. https://build.webkit.org/results/Apple-Sequoia-Debug-WK2-Tests/308928@main%20(3164)/imported/w3c/web-platform-tests/fullscreen/rendering/backdrop-object-diffs.html This diff image looks same with bug#289200.
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Fujii Hironori
Comment 1 2026-03-10 17:29:51 PDT
I confirmed reverting 308928@main makes the test pass constantly.
Anne van Kesteren
Comment 2 2026-03-11 09:36:19 PDT
The original flaky fix didn't fix the flakiness. Will fix.
Anne van Kesteren
Comment 3 2026-03-11 10:40:47 PDT
Pull request: https://github.com/WebKit/WebKit/pull/60375
EWS
Comment 4 2026-03-12 03:41:23 PDT
Committed 309132@main (57e7069c334d): <https://commits.webkit.org/309132@main> Reviewed commits have been landed. Closing PR #60375 and removing active labels.
Radar WebKit Bug Importer
Comment 5 2026-03-12 03:42:13 PDT
<rdar://problem/172363086>
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