RESOLVED FIXED286334
[Site Isolation] Creating an iframe while updating the history state of its parent causes a new back/forward item to be created 
https://bugs.webkit.org/show_bug.cgi?id=286334
Summary [Site Isolation] Creating an iframe while updating the history state of its p...
Charlie Wolfe
Reported 2025-01-21 17:32:42 PST
When a root child frame expects its initial history state to be committed, we store a WebBackForwardListFrameItem on its WebFrameProxy and add a child to it when the history item is committed. If the WebBackForwardListFrameItem is destroyed before the item is committed, a new item is added to the back-forward list instead of adding a frame to the existing item.
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Radar WebKit Bug Importer
Comment 1 2025-01-21 17:32:54 PST
<rdar://problem/143359188>
Charlie Wolfe
Comment 2 2025-01-21 17:34:06 PST
Pull request: https://github.com/WebKit/WebKit/pull/39359
EWS
Comment 3 2025-01-21 22:40:08 PST
Committed 289228@main (cbb8b220c0f1): <https://commits.webkit.org/289228@main> Reviewed commits have been landed. Closing PR #39359 and removing active labels.
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