218931 2020-11-13 19:38:27 -0800 [GLIB] Force wheel events listeners on the root to be passive 2026-03-12 05:24:16 -0700 1 1 1 Unclassified WebKit UI Events WebKit Nightly Build Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=218842 InRadar P2 Normal --- 1 lmoura webkit-unassigned bugs-noreply clopez webkit-bug-importer oldest_to_newest 1707457 0 lmoura 2020-11-13 19:38:27 -0800 bug218842 changed 'wheel' and 'mousewheel' events on root objects to be passive if they were not explicitly registered as non-passive. Most of the work is done but this feature is hidden under a mac-specific version check enabled only when linking with new versions of the SDK. Considering GTK/WPE release scheme, could it be enabled directly? New tests timing out due to this: fast/events/wheel/wheel-event-listeners-on-body-made-passive.html fast/events/wheel/wheel-event-listeners-on-document-made-passive.html fast/events/wheel/wheel-event-listeners-on-window-left-active.html fast/events/wheel/wheel-event-listeners-on-window-made-passive.html 1709469 1 lmoura 2020-11-20 07:03:46 -0800 fast/events/wheel/wheel-event-in-passive-region-non-cancelable.html It's also timing out and related to the bugs previously mentioned. 1709726 2 webkit-bug-importer 2020-11-20 19:39:13 -0800 <rdar://problem/71649886> 2189529 3 clopez 2026-03-12 05:24:16 -0700 But i understand this feature defaults to true on non-mac platforms (GTK/WPE) # Source/WTF/Scripts/Preferences/UnifiedWebPreferences.yaml: PassiveWheelListenersAsDefaultOnDocument: type: bool status: embedder humanReadableName: "Wheel Event listeners on the root made passive" humanReadableDescription: "Force wheel event listeners registered on the window, document or body to be passive" defaultValue: WebKitLegacy: "PLATFORM(MAC)": WebKit::defaultPassiveWheelListenersAsDefaultOnDocument() default: true WebKit: "PLATFORM(MAC)": WebKit::defaultPassiveWheelListenersAsDefaultOnDocument() default: true WebCore: default: true So doesn't seem that problem is with enabling the feature, seems a bug somewhere else