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Forward nested history events to same-origin iframe WindowProxy - #901
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wieslawsoltes merged 1 commit intoSep 21, 2026
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wieslawsoltes
added this pull request to stack #902
September 21, 2026 07:36
This was referenced Sep 21, 2026
wieslawsoltes
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This was referenced Sep 21, 2026
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Fixes #898. The inner iframe updates its history URL/state after back/forward, but owner-registered
contentWindowlisteners never receivepopstateorhashchange. Deliver events once to the stable same-origin proxy with the correct state, URL pair, target and order; bound and release listeners, keep cross-origin DOM masked, and avoid creating an owner document for an opaque proxy. A fresh cached document may fulfill the fourth cross-document navigation without another network request.Top of native GitHub stack #902: #899 → #900 → #901. On macOS native Release,
iframe-navigation-lifecyclepasses 100 cycles plus opaque/cross-origin denial and 1 MiB update p95 3.63 ms with flat 1,849,528-byte heap.iframe-cross-origin-parent-message,history-same-documentand 20-cyclequery-iframe-worker-bootstrappass (p95 145.27 ms, flat heap). Evidence:docs/validation/iframe-url-history-896-898.md. Merge the stack after related Linux native, portable V8 and metadata runners pass; consolidation #76 remains open.Stack created with GitHub Stacks CLI • Give Feedback 💬