Bug 307693

Summary:	Make UsesBackForwardCache defaults overridable
Product:	WebKit	Reporter:	Ben Nham <nham>
Component:	WebKit Misc.	Assignee:	Ben Nham <nham>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	cdumez, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Ben Nham

Reported 2026-02-12 11:13:08 PST

WebBackForwardCache is currently unused when Site Isolation is enabled. So to make memory benchmarks of SI off vs. on make sense, we need to have both configs run with the B/F cache disabled. To do this, make UsesBackForwardCache defaults overridable. The existing WebKitUsesPageCachePreferenceKey doesn't work since it only affects WebKitLegacy rather than WebKit2.

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Radar WebKit Bug Importer

Comment 1 2026-02-12 11:13:16 PST

<rdar://problem/170249171>

Ben Nham

Comment 2 2026-02-12 11:14:13 PST

Pull request: https://github.com/WebKit/WebKit/pull/58528

EWS

Comment 3 2026-02-12 13:47:07 PST

Committed 307395@main (26dfd8f8167a): <https://commits.webkit.org/307395@main> Reviewed commits have been landed. Closing PR #58528 and removing active labels.

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