WPT
wpt / workers / interfaces / DedicatedWorkerGlobalScope / postMessage / structured-clone-message.html
Spec: https://html.spec.whatwg.org/multipage/workers.html ↗
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)
View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 15/15 | 15/15 | 15/15 | 15/15 | 15/15 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| structured clone of message | PASS | PASS | PASS | PASS | PASS | — |
| undefined | PASS | PASS | PASS | PASS | PASS | — |
| null | PASS | PASS | PASS | PASS | PASS | — |
| false | PASS | PASS | PASS | PASS | PASS | — |
| true | PASS | PASS | PASS | PASS | PASS | — |
| 1 | PASS | PASS | PASS | PASS | PASS | — |
| NaN | PASS | PASS | PASS | PASS | PASS | — |
| Infinity | PASS | PASS | PASS | PASS | PASS | — |
| string | PASS | PASS | PASS | PASS | PASS | — |
| date | PASS | PASS | PASS | PASS | PASS | — |
| regexp | PASS | PASS | PASS | PASS | PASS | — |
| self | PASS | PASS | PASS | PASS | PASS | — |
| array | PASS | PASS | PASS | PASS | PASS | — |
| object | PASS | PASS | PASS | PASS | PASS | — |
| error | PASS | PASS | PASS | PASS | PASS | — |