WPT
wpt / dom / observable / tentative / observable-catch.any.worker.html
Spec: DOM ↗
Runs: Chrome 155.0.8041.0 (wpt@4a01b83e3, 2026-09-04) | Firefox 157.0a1 (wpt@e7122b73f, 2026-09-04) | Safari 251 preview (wpt@2c385f65e, 2026-09-04) | Ladybird 1.0-70fb3 (wpt@4a01b83e3, 2026-09-04) | 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 | 9/9 | 0/9 | 0/9 | 0/9 | 0/9 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| catch(): Returns an Observable that is a pass-through for next()/complete() | PASS | FAIL | FAIL | FAIL | FAIL | — |
| catch(): Handle errors from source and flatten to a new Observable | PASS | FAIL | FAIL | FAIL | FAIL | — |
| catch(): Errors thrown in the catch() callback are sent to the consumer's error handler | PASS | FAIL | FAIL | FAIL | FAIL | — |
| catch(): CatchHandler can return an empty iterable | PASS | FAIL | FAIL | FAIL | FAIL | — |
| catch(): CatchHandler can return a Promise | PASS | FAIL | FAIL | FAIL | FAIL | — |
| catch(): should handle returning an async iterable | PASS | FAIL | FAIL | FAIL | FAIL | — |
| catch(): CatchHandler emits an error if the value returned is not convertible to an Observable | PASS | FAIL | FAIL | FAIL | FAIL | — |
| catch(): CatchHandler returns an Observable that throws immediately on subscription | PASS | FAIL | FAIL | FAIL | FAIL | — |
| catch(): Abort order between outer AbortSignal and inner CatchHandler subscriber's AbortSignal | PASS | FAIL | FAIL | FAIL | FAIL | — |