Bug 308898

Summary:	Web Inspector: Site Isolation: Page domain emulation overrides (user agent, media, settings, preferences)
Product:	WebKit	Reporter:	Blaze Burg <bburg>
Component:	Web Inspector	Assignee:	Nobody <webkit-unassigned>
Status:	NEW
Severity:	Normal	CC:	inspector-bugzilla-changes, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
Bug Depends on:	306075
Bug Blocks:

Blaze Burg

Reported 2026-02-28 11:55:39 PST

Several Page commands need to forward configuration to all WebProcesses and replay to new OOPIF processes: - overrideUserAgent - setEmulatedMedia - overrideUserPreference (PrefersReducedMotion, PrefersContrast, PrefersColorScheme) - overrideSetting All follow the same pattern: UIProcess stores config, forwards via IPC, new processes get replayed state. Radar cross-reference: rdar://157031522

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Radar WebKit Bug Importer

Comment 1 2026-03-04 22:05:36 PST

<rdar://problem/171780938>

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