RESOLVED FIXED327636
[Site Isolation] Fullscreen from a cross-site iframe fires resize before fullscreenchange 
https://bugs.webkit.org/show_bug.cgi?id=327636
Summary [Site Isolation] Fullscreen from a cross-site iframe fires resize before full...
zak ridouh
Reported 2026-10-14 21:25:34 PDT
The UI process only told the main frame's web process to defer and flush resize, scroll and intersection observation events around a fullscreen transition, so a cross-site iframe fired resize before fullscreenchange. Send those messages to every web content process that hosts the page.
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Radar WebKit Bug Importer
Comment 1 2026-10-14 21:25:43 PDT
<rdar://problem/190086036>
zak ridouh
Comment 2 2026-10-14 21:27:20 PDT
Pull request: https://github.com/WebKit/WebKit/pull/77094
EWS
Comment 3 2026-10-20 16:00:40 PDT
Committed 324301@main (2f0d2c1e9112): <https://commits.webkit.org/324301@main> Reviewed commits have been landed. Closing PR #77094 and removing active labels.
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