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 / workers / interfaces
Spec: https://html.spec.whatwg.org/multipage/workers.html ↗
Runs: Chrome 155.0.8041.0 (wpt@2c385f65e, 2026-09-04) | Firefox 157.0a1 (wpt@2c385f65e, 2026-09-04) | Safari 251 preview (wpt@a1e944e7a, 2026-09-04) | Ladybird 1.0-a7825 (wpt@9298d21d2, 2026-09-04) | Servo Servo 0.6 (wpt@7e3d005d7, 2026-09-03) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)
Sort areas: alphabetical | by subtest count
| Area | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Total | 98.1%210/214 | 99.5%213/214 | 100.0%214/214 | 71.5%153/214 | 94.4%202/214 | 0.0%0/214 |
| DedicatedWorkerGlobalScope | 100.0%31/31 | 100.0%31/31 | 100.0%31/31 | 100.0%31/31 | 100.0%31/31 | 0.0%0/31 |
| SharedWorkerGlobalScope | 100.0%4/4 | 100.0%4/4 | 100.0%4/4 | 100.0%4/4 | 100.0%4/4 | 0.0%0/4 |
| WorkerGlobalScope | 97.6%83/85 | 100.0%85/85 | 100.0%85/85 | 65.9%56/85 | 94.1%80/85 | 0.0%0/85 |
| WorkerUtils | 97.9%92/94 | 98.9%93/94 | 100.0%94/94 | 66.0%62/94 | 92.6%87/94 | 0.0%0/94 |