RESOLVED FIXED316222
[Site Isolation] iframe memory monitor test fails 
https://bugs.webkit.org/show_bug.cgi?id=316222
Summary [Site Isolation] iframe memory monitor test fails
Anthony Tarbinian
Reported 2026-06-03 11:55:40 PDT
This bug targets http/tests/iframe-memory-monitor/media-video-autoplay-in-frames.html or any tests which use window.internals.lowerAllFrameMemoryMonitorLimits(); This is a similar bug to https://bugs.webkit.org/show_bug.cgi?id=315664 which affected network resource loading limits, whereas this one is for memory usage limits. In LocalFrame::showMemoryMonitorError, the misbehaving iframe is attempted to be unloaded via setting the srcdoc attribute on the iframe's ownerElement (Frame::m_ownerElement). With site isolation, the owner element can be in a different process which leaves m_ownerElement as null.
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Radar WebKit Bug Importer
Comment 1 2026-06-03 11:55:46 PDT
<rdar://problem/178647828>
Anthony Tarbinian
Comment 2 2026-06-03 12:12:34 PDT
Pull request: https://github.com/WebKit/WebKit/pull/66391
EWS
Comment 3 2026-06-05 10:12:30 PDT
Committed 314646@main (a69e1109cc6b): <https://commits.webkit.org/314646@main> Reviewed commits have been landed. Closing PR #66391 and removing active labels.
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