NEW308899
Web Inspector: Site Isolation: Page domain overlay and paint rect visualization 
https://bugs.webkit.org/show_bug.cgi?id=308899
Summary Web Inspector: Site Isolation: Page domain overlay and paint rect visualization
Blaze Burg
Reported 2026-02-28 11:55:42 PST
Wire up didPaint, didLayout, didScroll, didRecalculateStyle instrumentation hooks in PageAgentProxy for paint rect visualization. setShowPaintRects/setShowRulers need forwarding from UIProcess to all WebProcesses. Overlay rendering happens in WebProcess (part of compositor), so PageAgentProxy can operate on InspectorOverlay directly. But the setting must be forwarded and replayed to new processes. Radar cross-reference: rdar://157031522
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Radar WebKit Bug Importer
Comment 1 2026-03-04 22:05:39 PST
<rdar://problem/171780810>
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