REOPENED313144
REGRESSION(311815@main): ASSERT in Document::addScreenPropertiesChangedObserver(), !m_screenPropertiesChangedObservers.contains(observer) 
https://bugs.webkit.org/show_bug.cgi?id=313144
Summary REGRESSION(311815@main): ASSERT in Document::addScreenPropertiesChangedObserv...
Jer Noble
Reported 2026-04-23 10:06:51 PDT
REGRESSION(311815@main): ASSERT in Document::addScreenPropertiesChangedObserver(), !m_screenPropertiesChangedObservers.contains(observer)
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Radar WebKit Bug Importer
Comment 1 2026-04-23 10:06:59 PDT
<rdar://problem/175436583>
Jer Noble
Comment 2 2026-04-23 10:09:29 PDT
Pull request: https://github.com/WebKit/WebKit/pull/63437
Marta Darbinyan
Comment 3 2026-04-23 10:09:59 PDT
*** Bug 313145 has been marked as a duplicate of this bug. ***
EWS
Comment 4 2026-04-23 17:36:13 PDT
Committed 311910@main (21d6c8734704): <https://commits.webkit.org/311910@main> Reviewed commits have been landed. Closing PR #63437 and removing active labels.
Claudio Saavedra
Comment 5 2026-04-24 02:17:55 PDT
Reopened Bugzilla. REGRESSION(311815@main): Causes ASSERTION crashes in +20 tests, tracking revert in https://bugs.webkit.org/show_bug.cgi?id=313215.
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