308899 2026-02-28 11:55:42 -0800 Web Inspector: Site Isolation: Page domain overlay and paint rect visualization 2026-03-04 22:05:39 -0800 1 1 1 Unclassified WebKit Web Inspector WebKit Nightly Build Unspecified Unspecified NEW InRadar P2 Normal --- 306075 1 bburg webkit-unassigned inspector-bugzilla-changes webkit-bug-importer oldest_to_newest 2185865 0 bburg 2026-02-28 11:55:42 -0800 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 2187231 1 webkit-bug-importer 2026-03-04 22:05:39 -0800 <rdar://problem/171780810>