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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 / streams / readable-byte-streams

Spec: Streams ↗

Runs: Chrome 158.0.8110.0 (wpt@850b36a56, 2026-10-18) | Firefox 160.0a1 (wpt@b58866519, 2026-10-18) | Safari 254 preview (wpt@850b36a56, 2026-10-18) | Ladybird 1.0-1706f (wpt@850b36a56, 2026-10-18) | Servo Servo 0.7 (wpt@df642c414, 2026-10-17) | Blitz fb8d6c15e (wpt@cd1d8aa5b, 2026-10-17)

Score history

Percentage of subtests passing over time, one master run per day. Every engine's percentage is relative to the same denominator: the total number of subtests known to any engine in the latest runs (so lines are not distorted by tests being added to WPT, and an engine that skips tests is not flattered for it).

1 month3 months6 months1 year2 years4 yearsAll time
0%20%40%60%80%100%Nov 2025Dec 2025Jan 2026Feb 2026Mar 2026Apr 2026May 2026Jun 2026Jul 2026Aug 2026Sep 2026Oct 2026ChromeFirefoxSafariLadybirdServo

Sort: alphabetical | by subtest count

AreaChromeFirefoxSafariLadybirdServoBlitz
Total99.3%992/99899.5%994/99899.8%997/99875.0%749/99875.0%749/9980.0%0/998
crashtests66.6%4/6100.0%6/683.3%5/683.3%5/683.3%5/60.0%0/6
TestChromeFirefoxSafariLadybirdServoBlitz
Total99.5%988/99299.5%988/992100.0%992/99275.0%744/99275.0%744/992NO DATA
bad-buffers-and-views.any.html24/2424/2424/2424/2424/24NOT RUN
bad-buffers-and-views.any.serviceworker.html24/2424/2424/240/240/24NOT RUN
bad-buffers-and-views.any.sharedworker.html24/2424/2424/2424/2424/24NOT RUN
bad-buffers-and-views.any.worker.html24/2424/2424/2424/2424/24NOT RUN
construct-byob-request.any.html16/1616/1616/1616/1616/16NOT RUN
construct-byob-request.any.serviceworker.html16/1616/1616/160/160/16NOT RUN
construct-byob-request.any.sharedworker.html16/1616/1616/1616/1616/16NOT RUN
construct-byob-request.any.worker.html16/1616/1616/1616/1616/16NOT RUN
enqueue-with-detached-buffer.any.htmlPASSPASSPASSPASSPASSNOT RUN
enqueue-with-detached-buffer.any.serviceworker.htmlPASSPASSPASSERRORERRORNOT RUN
enqueue-with-detached-buffer.any.sharedworker.htmlPASSPASSPASSPASSPASSNOT RUN
enqueue-with-detached-buffer.any.worker.htmlPASSPASSPASSPASSPASSNOT RUN
general.any.html101/101101/101101/101101/101101/101NOT RUN
general.any.serviceworker.html101/101101/101101/1010/1010/101NOT RUN
general.any.sharedworker.html101/101101/101101/101101/101101/101NOT RUN
general.any.worker.html101/101101/101101/101101/101101/101NOT RUN
non-transferable-buffers.any.html4/44/44/44/44/4NOT RUN
non-transferable-buffers.any.serviceworker.html4/44/44/40/40/4NOT RUN
non-transferable-buffers.any.sharedworker.html4/44/44/44/44/4NOT RUN
non-transferable-buffers.any.worker.html4/44/44/44/44/4NOT RUN
patched-global.any.htmlFAILFAILPASSPASSPASSNOT RUN
patched-global.any.serviceworker.htmlFAILFAILPASSERRORERRORNOT RUN
patched-global.any.sharedworker.htmlFAILFAILPASSPASSPASSNOT RUN
patched-global.any.worker.htmlFAILFAILPASSPASSPASSNOT RUN
read-min.any.html24/2424/2424/2424/2424/24NOT RUN
read-min.any.serviceworker.html24/2424/2424/240/240/24NOT RUN
read-min.any.sharedworker.html24/2424/2424/2424/2424/24NOT RUN
read-min.any.worker.html24/2424/2424/2424/2424/24NOT RUN
respond-after-enqueue.any.html3/33/33/33/33/3NOT RUN
respond-after-enqueue.any.serviceworker.html3/33/33/30/30/3NOT RUN
respond-after-enqueue.any.sharedworker.html3/33/33/33/33/3NOT RUN
respond-after-enqueue.any.worker.html3/33/33/33/33/3NOT RUN
tee.any.html40/4040/4040/4040/4040/40NOT RUN
tee.any.serviceworker.html40/4040/4040/400/400/40NOT RUN
tee.any.sharedworker.html40/4040/4040/4040/4040/40NOT RUN
tee.any.worker.html40/4040/4040/4040/4040/40NOT RUN
templated.any.html34/3434/3434/3434/3434/34NOT RUN
templated.any.serviceworker.html34/3434/3434/340/340/34NOT RUN
templated.any.sharedworker.html34/3434/3434/3434/3434/34NOT RUN
templated.any.worker.html34/3434/3434/3434/3434/34NOT RUN