321822 2026-08-14 16:43:01 -0700 [Site Isolation] Web Inspector: Don't report duplicate Page.frameNavigated events per frame commit 2026-09-01 14:35:55 -0700 1 1 1 Unclassified WebKit Web Inspector WebKit Nightly Build All All RESOLVED FIXED InRadar P2 Normal --- 1 qianlangchen webkit-unassigned inspector-bugzilla-changes webkit-bug-importer oldest_to_newest 2240486 0 qianlangchen 2026-08-14 16:43:01 -0700 A frame commit reports Page.frameNavigated twice, once from the in-process InspectorPageAgent and once from the per-frame PageAgentProxy, and the frontend's handling of the second report re-initializes the frame -- discarding the child frames, resources, and execution contexts it already learned about. The worst case is nested iframes, where a parent's duplicate arriving after its children attached detachesa live subtree Address this to prevent breakages when we enable old and new Page domains at the same time, in Bug 321738 (rdar://184867249) 2240487 1 webkit-bug-importer 2026-08-14 16:43:07 -0700 <rdar://problem/184962162> 2240490 2 qianlangchen 2026-08-14 16:48:14 -0700 https://github.com/WebKit/WebKit/pull/71672 2246047 3 ews-feeder 2026-09-01 14:35:52 -0700 Committed 320271@main (42583e7e49eb): <https://commits.webkit.org/320271@main> Reviewed commits have been landed. Closing PR #71672 and removing active labels.