← WebKit — 2026-W37

3b068d9c3d5f  [intersection-observer] Some performance/power optimizations

not a security fix confidence 0.12 signal score 7.3 Source/WebCore/dom
Classified as not security-relevant.
Triage note: IntersectionObserver::updateObservations caches Document::isFullyActive() in a WeakHashMap and iterates copyToVectorOf(m_observationTargets); adds an ASSERT(page->hasRemoteFrames()). Performance optimization plus an assertion; the copy already existed, no bug fixed.
This commit was flagged by the signal scorer and reviewed by AI (not a human). It is listed only so the triage is auditable; there is no root-cause analysis because this is not a vulnerability fix.
Structural signals: smartptr_member_added (+3.0), msg_soft (+1.0), area:Source/WebCore/dom (+2.0), surgical (+1.3)

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