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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 / scheduler

Spec: Prioritized Task Scheduling ↗

Runs: Chrome 155.0.8039.0 (wpt@3f6b09ae3, 2026-09-03) | Firefox 157.0a1 (wpt@3f6b09ae3, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-795e1 (wpt@7e3d005d7, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (wpt@a95401e4e, 2026-09-02)

Sort areas: alphabetical | by subtest count

AreaChromeFirefoxSafariLadybirdServoBlitz
Total100.0%341/34199.1%338/3410.6%2/3410.6%2/3410.6%2/3410.0%0/341
tentative100.0%69/6997.1%67/690.0%0/690.0%0/690.0%0/690.0%0/69
TestChromeFirefoxSafariLadybirdServoBlitz
post-task-abort-reason.any.html4/44/40/40/40/4NOT RUN
post-task-abort-reason.any.serviceworker.html4/44/40/40/40/4NOT RUN
post-task-abort-reason.any.sharedworker.html4/44/40/40/40/4NOT RUN
post-task-abort-reason.any.worker.html4/44/40/40/40/4NOT RUN
post-task-delay.any.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-delay.any.serviceworker.htmlPASSFAILFAILERRORERRORNOT RUN
post-task-delay.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-delay.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-multiple-scheduler-order.window.html2/22/22/22/22/2NOT RUN
post-task-result-success.any.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-result-success.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
post-task-result-success.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-result-success.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-result-throws.any.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-result-throws.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
post-task-result-throws.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-result-throws.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-run-order.any.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-run-order.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
post-task-run-order.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-run-order.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-then-detach.htmlPASSPASSERRORERRORERRORNOT RUN
post-task-with-abort-signal-in-handler.any.html2/22/20/20/20/2NOT RUN
post-task-with-abort-signal-in-handler.any.serviceworker.html2/22/20/20/20/2NOT RUN
post-task-with-abort-signal-in-handler.any.sharedworker.html2/22/20/20/20/2NOT RUN
post-task-with-abort-signal-in-handler.any.worker.html2/22/20/20/20/2NOT RUN
post-task-with-abort-signal.any.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-with-abort-signal.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
post-task-with-abort-signal.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-with-abort-signal.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-with-aborted-signal.any.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-with-aborted-signal.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
post-task-with-aborted-signal.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-with-aborted-signal.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-with-signal-and-priority.any.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-with-signal-and-priority.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
post-task-with-signal-and-priority.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-with-signal-and-priority.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-with-signal-from-detached-iframe.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-without-signals.any.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-without-signals.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
post-task-without-signals.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
post-task-without-signals.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
scheduler-replaceable.any.htmlPASSPASSFAILFAILFAILNOT RUN
scheduler-replaceable.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
scheduler-replaceable.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
scheduler-replaceable.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-abort-completed-tasks.any.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-abort-completed-tasks.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
task-controller-abort-completed-tasks.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-abort-completed-tasks.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-abort-signal-and-priority.any.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-abort-signal-and-priority.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
task-controller-abort-signal-and-priority.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-abort-signal-and-priority.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-abort1.any.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-abort1.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
task-controller-abort1.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-abort1.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-abort2.any.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-abort2.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
task-controller-abort2.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-abort2.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-setPriority-delayed-task.any.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-setPriority-delayed-task.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
task-controller-setPriority-delayed-task.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-setPriority-delayed-task.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-setPriority-recursive.any.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-setPriority-recursive.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
task-controller-setPriority-recursive.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-setPriority-recursive.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-setPriority-repeated.any.html2/22/20/20/20/2NOT RUN
task-controller-setPriority-repeated.any.serviceworker.html2/22/20/20/20/2NOT RUN
task-controller-setPriority-repeated.any.sharedworker.html2/22/20/20/20/2NOT RUN
task-controller-setPriority-repeated.any.worker.html2/22/20/20/20/2NOT RUN
task-controller-setPriority1.any.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-setPriority1.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
task-controller-setPriority1.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-setPriority1.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-setPriority2.any.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-setPriority2.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
task-controller-setPriority2.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
task-controller-setPriority2.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN
task-signal-any-abort.tentative.any.html27/2727/270/270/270/27NOT RUN
task-signal-any-abort.tentative.any.serviceworker.html27/2727/270/270/270/27NOT RUN
task-signal-any-abort.tentative.any.sharedworker.html27/2727/270/270/270/27NOT RUN
task-signal-any-abort.tentative.any.worker.html27/2727/270/270/270/27NOT RUN
task-signal-any-post-task-run-order.tentative.any.html3/33/30/30/30/3NOT RUN
task-signal-any-post-task-run-order.tentative.any.serviceworker.html3/33/30/30/30/3NOT RUN
task-signal-any-post-task-run-order.tentative.any.sharedworker.html3/33/30/30/30/3NOT RUN
task-signal-any-post-task-run-order.tentative.any.worker.html3/33/30/30/30/3NOT RUN
task-signal-any-priority.tentative.any.html11/1111/110/110/110/11NOT RUN
task-signal-any-priority.tentative.any.serviceworker.html11/1111/110/110/110/11NOT RUN
task-signal-any-priority.tentative.any.sharedworker.html11/1111/110/110/110/11NOT RUN
task-signal-any-priority.tentative.any.worker.html11/1111/110/110/110/11NOT RUN
task-signal-onprioritychange.any.htmlPASSPASSFAILFAILFAILNOT RUN
task-signal-onprioritychange.any.serviceworker.htmlPASSPASSFAILERRORERRORNOT RUN
task-signal-onprioritychange.any.sharedworker.htmlPASSPASSFAILFAILFAILNOT RUN
task-signal-onprioritychange.any.worker.htmlPASSPASSFAILFAILFAILNOT RUN