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 / js / behaviours
Spec: https://tc39.es/ecma262/ ↗
Runs: Chrome 155.0.8038.0 (wpt@397d01d8e, 2026-09-02) | Firefox 157.0a1 (wpt@397d01d8e, 2026-09-02) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-5f6fa (wpt@b1a7025f8, 2026-09-02) | Servo Servo 0.5 (wpt@2ccd2cbf8, 2026-09-01) | Blitz 7727414ca (wpt@a95401e4e, 2026-09-02)
Sort areas: alphabetical | by subtest count
| Area | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Total | 29.4%5/17 | 100.0%17/17 | 29.4%5/17 | 100.0%17/17 | 29.4%5/17 | 0.0%0/17 |
| Test | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| HostEnsureCanAddPrivateElement.window.html | 1/13 | 13/13 | 1/13 | 13/13 | 1/13 | NOT RUN |
| SetPrototypeOf-window.html | 4/4 | 4/4 | 4/4 | 4/4 | 4/4 | NOT RUN |