Click here to download the Blitz Browser!

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 / fetch / api / response

Spec: Fetch ↗

Runs: Chrome 158.0.8110.0 (wpt@850b36a56, 2026-10-18) | Firefox 160.0a1 (wpt@b58866519, 2026-10-18) | Safari 254 preview (wpt@470a7adf8, 2026-10-18) | Ladybird 1.0-e7b21 (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
Total94.4%890/94288.0%829/94298.9%932/94275.7%714/94276.7%723/9420.0%0/942
multi-globals100.0%1/1100.0%1/1100.0%1/1100.0%1/1100.0%1/10.0%0/1
TestChromeFirefoxSafariLadybirdServoBlitz
Total94.4%889/94187.9%828/94198.9%931/94175.7%713/94176.7%722/941NO DATA
json.any.html2/22/21/22/22/2NOT RUN
json.any.worker.html2/22/21/22/22/2NOT RUN
many-empty-chunks-crash.htmlPASSPASSPASSERRORPASSNOT RUN
response-arraybuffer-realm.window.htmlPASSPASSFAILFAILPASSNOT RUN
response-blob-realm.any.htmlPASSPASSFAILFAILPASSNOT RUN
response-body-read-task-handling.html2/22/22/22/21/2NOT RUN
response-body-stashed-chunk.htmlPASSPASSPASSPASSPASSNOT RUN
response-cancel-stream.any.html7/77/77/77/77/7NOT RUN
response-cancel-stream.any.serviceworker.html7/77/77/70/70/7NOT RUN
response-cancel-stream.any.sharedworker.html7/77/77/77/77/7NOT RUN
response-cancel-stream.any.worker.html7/77/77/77/77/7NOT RUN
response-clone-iframe.window.htmlPASSPASSPASSPASSPASSNOT RUN
response-clone.any.html21/217/2121/2121/2121/21NOT RUN
response-clone.any.serviceworker.html21/217/2121/210/210/21NOT RUN
response-clone.any.sharedworker.html21/217/2121/2121/2121/21NOT RUN
response-clone.any.worker.html21/217/2121/2121/2121/21NOT RUN
response-consume-empty.any.html13/1413/1413/1413/1413/14NOT RUN
response-consume-empty.any.serviceworker.html13/1413/1413/140/140/14NOT RUN
response-consume-empty.any.sharedworker.html13/1413/1413/1413/1413/14NOT RUN
response-consume-empty.any.worker.html13/1413/1413/1413/1413/14NOT RUN
response-consume-stream.any.html15/1515/1515/1515/1515/15NOT RUN
response-consume-stream.any.serviceworker.html15/1515/1515/150/150/15NOT RUN
response-consume-stream.any.sharedworker.html15/1515/1515/1515/1515/15NOT RUN
response-consume-stream.any.worker.html15/1515/1515/1515/1515/15NOT RUN
response-consume.html40/4039/4040/4033/4039/40NOT RUN
response-error-from-stream.any.html2/142/1414/1414/1414/14NOT RUN
response-error-from-stream.any.serviceworker.html2/142/1414/140/140/14NOT RUN
response-error-from-stream.any.sharedworker.html2/142/1414/1414/1414/14NOT RUN
response-error-from-stream.any.worker.html2/142/1414/1414/1414/14NOT RUN
response-error.any.html10/1010/1010/1010/1010/10NOT RUN
response-error.any.serviceworker.html10/1010/1010/100/100/10NOT RUN
response-error.any.sharedworker.html10/1010/1010/1010/1010/10NOT RUN
response-error.any.worker.html10/1010/1010/1010/1010/10NOT RUN
response-form-data.html14/1410/1412/1411/1413/14NOT RUN
response-from-stream.any.html3/33/33/33/33/3NOT RUN
response-from-stream.any.serviceworker.html3/33/33/30/30/3NOT RUN
response-from-stream.any.sharedworker.html3/33/33/33/33/3NOT RUN
response-from-stream.any.worker.html3/33/33/33/33/3NOT RUN
response-headers-guard.any.htmlPASSPASSPASSPASSPASSNOT RUN
response-headers-guard.any.serviceworker.htmlPASSPASSPASSERRORERRORNOT RUN
response-headers-guard.any.sharedworker.htmlPASSPASSPASSPASSPASSNOT RUN
response-headers-guard.any.worker.htmlPASSPASSPASSPASSPASSNOT RUN
response-init-001.any.html9/99/99/99/99/9NOT RUN
response-init-001.any.serviceworker.html9/99/99/90/90/9NOT RUN
response-init-001.any.sharedworker.html9/99/99/99/99/9NOT RUN
response-init-001.any.worker.html9/99/99/99/99/9NOT RUN
response-init-002.any.html8/88/88/88/88/8NOT RUN
response-init-002.any.serviceworker.html8/88/88/80/80/8NOT RUN
response-init-002.any.sharedworker.html8/88/88/88/88/8NOT RUN
response-init-002.any.worker.html8/88/88/88/88/8NOT RUN
response-init-contenttype.any.html18/1818/1818/1817/1818/18NOT RUN
response-init-contenttype.any.worker.html18/1818/1818/1817/1818/18NOT RUN
response-static-error.any.html2/22/22/22/22/2NOT RUN
response-static-error.any.serviceworker.html2/22/22/20/20/2NOT RUN
response-static-error.any.sharedworker.html2/22/22/22/22/2NOT RUN
response-static-error.any.worker.html2/22/22/22/22/2NOT RUN
response-static-json.any.html16/1616/1616/1616/1616/16NOT RUN
response-static-json.any.serviceworker.html16/1616/1616/160/160/16NOT RUN
response-static-json.any.sharedworker.html16/1616/1616/1616/1616/16NOT RUN
response-static-json.any.worker.html16/1616/1616/1616/1616/16NOT RUN
response-static-redirect.any.html11/1111/1111/1111/1111/11NOT RUN
response-static-redirect.any.serviceworker.html11/1111/1111/110/110/11NOT RUN
response-static-redirect.any.sharedworker.html11/1111/1111/1111/1111/11NOT RUN
response-static-redirect.any.worker.html11/1111/1111/1111/1111/11NOT RUN
response-stream-bad-chunk.any.html6/66/66/66/66/6NOT RUN
response-stream-bad-chunk.any.serviceworker.html6/66/66/60/60/6NOT RUN
response-stream-bad-chunk.any.sharedworker.html6/66/66/66/66/6NOT RUN
response-stream-bad-chunk.any.worker.html6/66/66/66/66/6NOT RUN
response-stream-disturbed-1.any.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-1.any.serviceworker.html12/1212/1212/120/120/12NOT RUN
response-stream-disturbed-1.any.sharedworker.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-1.any.worker.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-2.any.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-2.any.serviceworker.html12/1212/1212/120/120/12NOT RUN
response-stream-disturbed-2.any.sharedworker.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-2.any.worker.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-3.any.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-3.any.serviceworker.html12/1212/1212/120/120/12NOT RUN
response-stream-disturbed-3.any.sharedworker.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-3.any.worker.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-4.any.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-4.any.serviceworker.html12/1212/1212/120/120/12NOT RUN
response-stream-disturbed-4.any.sharedworker.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-4.any.worker.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-5.any.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-5.any.serviceworker.html12/1212/1212/120/120/12NOT RUN
response-stream-disturbed-5.any.sharedworker.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-5.any.worker.html12/1212/1212/1212/1212/12NOT RUN
response-stream-disturbed-6.any.html5/55/55/55/55/5NOT RUN
response-stream-disturbed-6.any.serviceworker.html5/55/55/50/50/5NOT RUN
response-stream-disturbed-6.any.sharedworker.html5/55/55/55/55/5NOT RUN
response-stream-disturbed-6.any.worker.html5/55/55/55/55/5NOT RUN
response-stream-disturbed-by-pipe.any.html2/22/22/22/22/2NOT RUN
response-stream-disturbed-by-pipe.any.serviceworker.html2/22/22/20/20/2NOT RUN
response-stream-disturbed-by-pipe.any.sharedworker.html2/22/22/22/22/2NOT RUN
response-stream-disturbed-by-pipe.any.worker.html2/22/22/22/22/2NOT RUN
response-stream-with-broken-then.any.html6/66/66/66/65/6NOT RUN
response-stream-with-broken-then.any.serviceworker.html6/66/66/60/60/6NOT RUN
response-stream-with-broken-then.any.sharedworker.html6/66/66/66/65/6NOT RUN
response-stream-with-broken-then.any.worker.html6/66/66/66/65/6NOT RUN