287998 2025-02-19 13:31:25 -0800 [Site Isolation] Main frame history state may be incorrectly created when navigating during iframe creation 2025-02-20 00:15:33 -0800 1 1 1 Unclassified WebKit History WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 288073 InRadar P2 Normal --- 288063 1 charliew charliew commit-queue webkit-bug-importer oldest_to_newest 2096005 0 charliew 2025-02-19 13:31:25 -0800 Site Isolation introduces an unavoidable race condition where the history state committed by a web process may have been created for a frame that the UI process has already destroyed. When this happens, we should return early instead of adding an incorrect back/forward item. 2096006 1 webkit-bug-importer 2025-02-19 13:31:51 -0800 <rdar://problem/145164046> 2096007 2 charliew 2025-02-19 13:33:14 -0800 Pull request: https://github.com/WebKit/WebKit/pull/40888 2096163 3 ews-feeder 2025-02-19 17:38:22 -0800 Committed 290673@main (da11536420a6): <https://commits.webkit.org/290673@main> Reviewed commits have been landed. Closing PR #40888 and removing active labels. 2096240 4 commit-queue 2025-02-19 21:29:06 -0800 Re-opened since this is blocked by bug 288063 2096274 5 charliew 2025-02-20 00:15:33 -0800 *** This bug has been marked as a duplicate of bug 288073 ***