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: File API ↗
Runs: Chrome 155.0.8039.0 (wpt@a4fcd77aa, 2026-09-03) | Firefox 157.0a1 (wpt@cc4d45aa0, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-a9df8 (wpt@47d833bbc, 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 | 95.6%129/135 | NO DATA | 97.8%132/135 | NO DATA | 88.1%119/135 | 0.0%0/135 |
| Test | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| cross-global-revoke.sub.html | 3/3 | 3/3 | 3/3 | 2/3 | 3/3 | NOT RUN |
| multi-global-origin-serialization.sub.html | PASS | PASS | PASS | FAIL | PASS | NOT RUN |
| sandboxed-iframe.html | 35/40 | 37/40 | 37/40 | 37/40 | 36/40 | NOT RUN |
| unicode-origin.sub.html | PASS | PASS | PASS | PASS | PASS | NOT RUN |
| url-charset.window.html | 2/2 | 2/2 | 2/2 | 2/2 | 2/2 | NOT RUN |
| url-format.any.html | 6/6 | 6/6 | 6/6 | 6/6 | 6/6 | NOT RUN |
| url-format.any.worker.html | 6/6 | 6/6 | 6/6 | 6/6 | 6/6 | NOT RUN |
| url-in-tags-revoke.window.html | 7/7 | 7/7 | 7/7 | 6/7 | 2/7 | NOT RUN |
| url-in-tags.window.html | 4/4 | 4/4 | 4/4 | 4/4 | 4/4 | NOT RUN |
| url-lifetime.html | 2/2 | 2/2 | 2/2 | 1/2 | 0/2 | NOT RUN |
| url-reload.window.html | 1/2 | 2/2 | 2/2 | 2/2 | 1/2 | NOT RUN |
| url-with-fetch.any.html | 16/16 | 16/16 | 16/16 | 16/16 | 14/16 | NOT RUN |
| url-with-fetch.any.worker.html | 16/16 | 16/16 | 16/16 | 16/16 | 14/16 | NOT RUN |
| url-with-xhr.any.html | 14/14 | 14/14 | 14/14 | 14/14 | 14/14 | NOT RUN |
| url-with-xhr.any.worker.html | 14/14 | 14/14 | 14/14 | 14/14 | 14/14 | NOT RUN |
| url_xmlhttprequest_img.html | PASS | PASS | PASS | PASS | PASS | NOT RUN |