WPT
wpt / web-locks / ifAvailable.https.any.worker.html
Spec: Web Locks API ↗
Runs: Chrome 155.0.8039.0 (wpt@508cc6a62, 2026-09-03) | Firefox 157.0a1 (wpt@508cc6a62, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-56c61 (wpt@8fdda8ce4, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (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 | 10/10 | 10/10 | 10/10 | 10/10 | 0/10 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Lock request with ifAvailable - lock available | PASS | PASS | PASS | PASS | FAIL | — |
| Lock request with ifAvailable - lock not available | PASS | PASS | PASS | PASS | FAIL | — |
| Lock request with ifAvailable - lock not available, callback throws | PASS | PASS | PASS | PASS | FAIL | — |
| Lock request with ifAvailable - unrelated lock held | PASS | PASS | PASS | PASS | FAIL | — |
| Shared lock request with ifAvailable - shared lock held | PASS | PASS | PASS | PASS | FAIL | — |
| Exclusive lock request with ifAvailable - shared lock held | PASS | PASS | PASS | PASS | FAIL | — |
| Shared lock request with ifAvailable - exclusive lock held | PASS | PASS | PASS | PASS | FAIL | — |
| Returned Promise rejects if callback throws synchronously | PASS | PASS | PASS | PASS | FAIL | — |
| Returned Promise rejects if async callback yields rejected promise | PASS | PASS | PASS | PASS | FAIL | — |
| Locks are available once previous release is processed | PASS | PASS | PASS | PASS | FAIL | — |