RESOLVED CONFIGURATION CHANGED298554
Speedometer: Element.scrollIntoView overscrolls chat section in Responsive-Design 
https://bugs.webkit.org/show_bug.cgi?id=298554
Summary Speedometer: Element.scrollIntoView overscrolls chat section in Responsive-De...
Simon Fraser (smfr)
Reported 2025-09-08 14:04:46 PDT
https://github.com/WebKit/Speedometer/issues/525 Affected: Safari. Works as expected in Chrome/Firefox. Repro: Suite: Responsive-Design → step: “ScrollToChatAndSendMessages” In the Responsive-Design workload, programmatically call scrollIntoView on the chat area/anchor (inside shadow DOM). Safari scrolls far past the target (often down to the “Subscribe” section at the bottom) You can repro this by stepping with the "Step Test" button in the developer menu. Expected: Minimal scroll that brings the chat anchor into view (matches Chrome/Firefox and Safari DevTools’ “Scroll into view”). Actual: Overscroll Impact: Safari end2end Tests time out waiting for a video-grid-content-visibility-complete event (emitted by the video-grid on content-visibility autostate change). The event never arrives.
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Radar WebKit Bug Importer
Comment 1 2025-09-15 14:05:22 PDT
<rdar://problem/160639448>
Simon Fraser (smfr)
Comment 2 2025-10-07 11:23:03 PDT
Content available at https://neon-gumdrop-d49b03.netlify.app/?developerMode=&suites=Responsive-Design
Simon Fraser (smfr)
Comment 3 2026-04-05 10:18:40 PDT
This works correctly in tip of tree.
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