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.
Spec: Fetch ↗
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
| Area | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Total | 100.0%453/453 | 99.1%449/453 | 96.9%439/453 | 99.1%449/453 | 92.5%419/453 | 0.0%0/453 |
| Test | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| 304.htm | 4/4 | 4/4 | 4/4 | 4/4 | 4/4 | NOT RUN |
| access-control-expose-headers-parsing.window.html | 16/16 | 16/16 | 16/16 | 16/16 | 8/16 | NOT RUN |
| basic.htm | 12/12 | 12/12 | 12/12 | 12/12 | 12/12 | NOT RUN |
| client-hint-request-headers-2.tentative.htm | PASS | FAIL | FAIL | FAIL | FAIL | NOT RUN |
| client-hint-request-headers.htm | 8/8 | 8/8 | 8/8 | 8/8 | 8/8 | NOT RUN |
| cors-safelisted-request-header.any.html | 44/44 | 44/44 | 39/44 | 44/44 | 35/44 | NOT RUN |
| cors-safelisted-request-header.any.worker.html | 44/44 | 44/44 | 39/44 | 44/44 | 35/44 | NOT RUN |
| credentials-flag.htm | 15/15 | 15/15 | 15/15 | 15/15 | 15/15 | NOT RUN |
| image-tainting-in-cross-origin-iframe.sub.html | PASS | PASS | PASS | PASS | PASS | NOT RUN |
| late-upload-events.htm | 2/2 | 2/2 | 2/2 | 2/2 | 2/2 | NOT RUN |
| origin.htm | 64/64 | 64/64 | 64/64 | 64/64 | 64/64 | NOT RUN |
| preflight-cache-partitioning.sub.window.html | PASS | PASS | PASS | PASS | PASS | NOT RUN |
| preflight-cache.htm | 6/6 | 6/6 | 6/6 | 6/6 | 3/6 | NOT RUN |
| preflight-failure.htm | 37/37 | 37/37 | 37/37 | 37/37 | 37/37 | NOT RUN |
| redirect-origin.htm | 43/43 | 43/43 | 43/43 | 43/43 | 43/43 | NOT RUN |
| redirect-preflight-2.htm | 2/2 | 2/2 | 2/2 | 2/2 | 2/2 | NOT RUN |
| redirect-preflight.htm | 5/5 | 5/5 | 5/5 | 5/5 | 5/5 | NOT RUN |
| redirect-userinfo.htm | 6/6 | 6/6 | 6/6 | 6/6 | 6/6 | NOT RUN |
| remote-origin.htm | 45/45 | 45/45 | 45/45 | 45/45 | 45/45 | NOT RUN |
| request-headers.htm | 6/6 | 6/6 | 6/6 | 6/6 | 5/6 | NOT RUN |
| response-headers.htm | 17/17 | 17/17 | 17/17 | 17/17 | 17/17 | NOT RUN |
| script-304.html | 2/2 | 2/2 | 2/2 | 2/2 | 2/2 | NOT RUN |
| simple-requests-ch.tentative.htm | 3/3 | 0/3 | 0/3 | 0/3 | 0/3 | NOT RUN |
| simple-requests.htm | 24/24 | 24/24 | 24/24 | 24/24 | 24/24 | NOT RUN |
| status-async.htm | 24/24 | 24/24 | 24/24 | 24/24 | 24/24 | NOT RUN |
| status-preflight.htm | 16/16 | 16/16 | 16/16 | 16/16 | 16/16 | NOT RUN |
| status.htm | 5/5 | 5/5 | 5/5 | 5/5 | 5/5 | NOT RUN |