RESOLVED FIXED312399
[Site Isolation] Validation message bubble is positioned incorrectly in cross-origin iframes 
https://bugs.webkit.org/show_bug.cgi?id=312399
Summary [Site Isolation] Validation message bubble is positioned incorrectly in cross...
zak ridouh
Reported 2026-04-15 11:55:17 PDT
When site isolation is enabled, form validation bubbles triggered from elements inside cross-origin iframes appear at the wrong position. The anchor rect sent via ShowValidationMessage IPC is in subframe coordinates, but the UIProcess treats it as main-frame coordinates. This is the same class of bug I previously fixed for color pickers, datalist suggestions, and datetime pickers.
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Radar WebKit Bug Importer
Comment 1 2026-04-15 11:55:23 PDT
<rdar://problem/174855372>
zak ridouh
Comment 2 2026-04-15 12:09:59 PDT
Pull request: https://github.com/WebKit/WebKit/pull/62839
EWS
Comment 3 2026-05-15 12:49:12 PDT
Committed 313326@main (4221343a3e61): <https://commits.webkit.org/313326@main> Reviewed commits have been landed. Closing PR #62839 and removing active labels.
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