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WPT

This page compares scores on the Web Platform Tests across web engines, using the latest master runs from wpt.fyi and Blitz's own test runner.

wpt / dom / events

Spec: DOM ↗

Runs: Chrome 155.0.8042.0 (wpt@4eb09bcd9, 2026-09-04) | Firefox 157.0a1 (wpt@c3fcbf4ba, 2026-09-04) | Safari 251 preview (wpt@e7122b73f, 2026-09-04) | Ladybird 1.0-52f0f (wpt@a1ecd0c09, 2026-09-04) | Servo Servo 0.6 (wpt@2c385f65e, 2026-09-04) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)

Sort areas: alphabetical | by subtest count

AreaChromeFirefoxSafariLadybirdServoBlitz
Total96.1%848/88293.1%821/88292.6%817/88289.2%787/88283.4%736/8820.0%0/882
non-cancelable-when-passive100.0%53/5381.1%43/5354.7%29/5335.8%19/5354.7%29/530.0%0/53
scrolling86.8%79/9173.6%67/9178.0%71/9171.4%65/9142.9%39/910.0%0/91
TestChromeFirefoxSafariLadybirdServoBlitz
AddEventListenerOptions-once.any.html4/44/44/44/44/4NOT RUN
AddEventListenerOptions-once.any.worker.html4/44/44/44/44/4NOT RUN
AddEventListenerOptions-passive.any.html5/55/55/55/55/5NOT RUN
AddEventListenerOptions-passive.any.worker.html5/55/55/55/55/5NOT RUN
AddEventListenerOptions-signal.any.html11/1111/1111/1111/1111/11NOT RUN
AddEventListenerOptions-signal.any.worker.html11/1111/1111/1111/1111/11NOT RUN
Body-FrameSet-Event-Handlers.html48/4848/4848/4848/4834/48NOT RUN
CustomEvent.html3/33/33/33/33/3NOT RUN
Event-cancelBubble.html8/88/88/88/88/8NOT RUN
Event-constants.html4/44/44/44/44/4NOT RUN
Event-constructors.any.html14/1414/1414/1414/1414/14NOT RUN
Event-constructors.any.worker.html14/1414/1414/1414/1414/14NOT RUN
Event-defaultPrevented-after-dispatch.html2/22/22/22/22/2NOT RUN
Event-defaultPrevented.html8/88/88/88/88/8NOT RUN
Event-dispatch-bubble-canceled.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-bubbles-false.html5/55/55/55/55/5NOT RUN
Event-dispatch-bubbles-true.html5/55/55/55/55/5NOT RUN
Event-dispatch-click.html33/3333/3333/3333/3333/33NOT RUN
Event-dispatch-click.tentative.html4/66/64/64/64/6NOT RUN
Event-dispatch-detached-click.html2/22/22/22/22/2NOT RUN
Event-dispatch-detached-input-and-change.html12/1212/1212/1212/1212/12NOT RUN
Event-dispatch-handlers-changed.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-listener-order.window.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-multiple-cancelBubble.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-multiple-stopPropagation.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-omitted-capture.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-on-disabled-elements.html9/99/99/98/96/9NOT RUN
Event-dispatch-order-at-target.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-order.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-other-document.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-propagation-stopped.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-redispatch.html4/44/44/44/44/4NOT RUN
Event-dispatch-reenter.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-single-activation-behavior.html120/132123/132120/132124/132124/132NOT RUN
Event-dispatch-target-moved.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-target-removed.htmlPASSPASSPASSPASSPASSNOT RUN
Event-dispatch-throwing-multiple-globals.html2/22/22/20/22/2NOT RUN
Event-dispatch-throwing.html2/22/22/22/22/2NOT RUN
Event-init-while-dispatching.html5/55/55/55/55/5NOT RUN
Event-initEvent.html12/1212/1212/1212/1212/12NOT RUN
Event-isTrusted.any.htmlPASSPASSPASSPASSPASSNOT RUN
Event-isTrusted.any.worker.htmlPASSPASSPASSPASSPASSNOT RUN
Event-propagation.html7/77/77/77/77/7NOT RUN
Event-returnValue.html7/77/77/77/77/7NOT RUN
Event-stopImmediatePropagation.htmlPASSPASSPASSPASSPASSNOT RUN
Event-stopPropagation-cancel-bubbling.htmlPASSPASSPASSPASSPASSNOT RUN
Event-subclasses-constructors.html49/4949/4949/4949/4942/49NOT RUN
Event-timestamp-cross-realm-getter.htmlPASSPASSPASSPASSPASSNOT RUN
Event-timestamp-high-resolution.html4/44/44/44/44/4NOT RUN
Event-timestamp-high-resolution.https.htmlPASSPASSPASSPASSPASSNOT RUN
Event-timestamp-safe-resolution.htmlPASSPASSPASSPASSPASSNOT RUN
Event-type-empty.html2/22/22/22/22/2NOT RUN
Event-type.html3/33/33/33/33/3NOT RUN
EventListener-addEventListener.sub.window.htmlPASSPASSPASSPASSPASSNOT RUN
EventListener-handleEvent-cross-realm.html2/50/54/55/53/5NOT RUN
EventListener-handleEvent.html4/66/66/66/64/6NOT RUN
EventListener-incumbent-global-1.sub.htmlPASSPASSFAILTIMEOUTPASSNOT RUN
EventListener-incumbent-global-2.sub.htmlPASSPASSFAILTIMEOUTPASSNOT RUN
EventListener-invoke-legacy.html6/66/66/64/63/6NOT RUN
EventListenerOptions-capture.html4/44/44/44/44/4NOT RUN
EventTarget-add-listener-platform-object.htmlPASSPASSPASSPASSPASSNOT RUN
EventTarget-add-remove-listener.any.htmlPASSPASSPASSPASSPASSNOT RUN
EventTarget-add-remove-listener.any.worker.htmlPASSPASSPASSPASSPASSNOT RUN
EventTarget-addEventListener.any.htmlPASSPASSPASSPASSPASSNOT RUN
EventTarget-addEventListener.any.worker.htmlPASSPASSPASSPASSPASSNOT RUN
EventTarget-constructible.any.html3/33/33/33/33/3NOT RUN
EventTarget-constructible.any.worker.html3/33/33/33/33/3NOT RUN
EventTarget-dispatchEvent-returnvalue.html2/22/22/22/22/2NOT RUN
EventTarget-dispatchEvent.html25/2525/2525/2525/2522/25NOT RUN
EventTarget-removeEventListener.any.htmlPASSPASSPASSPASSPASSNOT RUN
EventTarget-removeEventListener.any.worker.htmlPASSPASSPASSPASSPASSNOT RUN
EventTarget-this-of-listener.html6/66/66/66/66/6NOT RUN
KeyEvent-initKeyEvent.html3/33/33/33/33/3NOT RUN
click-on-absolute-pseudo.htmlPASSERRORERRORERRORERRORNOT RUN
event-disabled-dynamic.htmlPASSPASSPASSPASSPASSNOT RUN
event-global-extra.window.html6/65/66/66/66/6NOT RUN
event-global-is-still-set-when-coercing-beforeunload-result.htmlPASSPASSPASSPASSPASSNOT RUN
event-global-is-still-set-when-reporting-exception-onerror.htmlPASSFAILPASSPASSPASSNOT RUN
event-global-set-before-handleEvent-lookup.window.htmlPASSPASSPASSPASSPASSNOT RUN
event-global.html8/88/88/88/88/8NOT RUN
event-global.worker.htmlPASSPASSPASSPASSPASSNOT RUN
event-handler-attribute-replace-preserves-passive.html2/22/22/22/22/2NOT RUN
event-src-element-nullable.htmlPASSPASSPASSPASSPASSNOT RUN
focus-event-document-move.htmlPASSPASSPASSPASSPASSNOT RUN
handler-count.html?document2/22/22/22/22/2NOT RUN
handler-count.html?element2/22/22/22/22/2NOT RUN
handler-count.html?window2/22/22/22/22/2NOT RUN
keypress-dispatch-crash.htmlPASSPASSPASSPASSPASSNOT RUN
label-default-action.htmlPASSPASSPASSPASSPASSNOT RUN
legacy-pre-activation-behavior.window.htmlPASSPASSPASSPASSPASSNOT RUN
mouse-event-retarget.htmlPASSPASSPASSFAILFAILNOT RUN
no-focus-events-at-clicking-editable-content-in-link.html2/22/22/22/21/2NOT RUN
passive-by-default.html100/10092/100100/100100/100100/100NOT RUN
pointer-event-document-move.htmlPASSPASSPASSPASSPASSNOT RUN
preventDefault-during-activation-behavior.htmlPASSPASSPASSPASSPASSNOT RUN
relatedTarget.window.html3/64/63/62/63/6NOT RUN
remove-all-listeners.html2/22/22/22/22/2NOT RUN
replace-event-listener-null-browsing-context-crash.htmlPASSPASSPASSPASSPASSNOT RUN
shadow-relatedTarget.html2/22/22/22/22/2NOT RUN
webkit-animation-end-event.html13/1313/1313/139/138/13NOT RUN
webkit-animation-iteration-event.html13/1313/1313/139/138/13NOT RUN
webkit-animation-start-event.html13/1313/1313/139/138/13NOT RUN
webkit-transition-end-event.html13/1313/1313/1313/138/13NOT RUN
window-composed-path.htmlPASSPASSPASSPASSPASSNOT RUN
window-event-restored-after-throwing-onerror.htmlPASSPASSPASSPASSPASSNOT RUN