WPT
wpt / workers / constructors / Worker / Worker-constructor.html
Spec: https://html.spec.whatwg.org/multipage/workers.html ↗
Runs: Chrome 155.0.8040.0 (wpt@105b6a3a5, 2026-09-03) | Firefox 157.0a1 (wpt@e6996908b, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-f436a (wpt@476394464, 2026-09-03) | Servo Servo 0.6 (wpt@7e3d005d7, 2026-09-03) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)
View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 7/7 | 7/7 | 7/7 | 7/7 | 7/7 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Test toString propagation exception. | PASS | PASS | PASS | PASS | PASS | — |
| Test recursive Worker creation. | PASS | PASS | PASS | PASS | PASS | — |
| Test worker creation with no arguments | PASS | PASS | PASS | PASS | PASS | — |
| Test Worker creation with empty script URL. | PASS | PASS | PASS | PASS | PASS | — |
| Test invalid script URL. | PASS | PASS | PASS | PASS | PASS | — |
| Test not existent script URL. | PASS | PASS | PASS | PASS | PASS | — |
| Test the Worker object defines postMessage() and addEventListener(). | PASS | PASS | PASS | PASS | PASS | — |