WPT
wpt / webaudio / the-audio-api / the-iirfilternode-interface / test-iirfilternode.html
Spec: Web Audio API ↗
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@2c385f65e, 2026-09-04) | 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 | 8/8 | 8/8 | 8/8 | 1/8 | 7/8 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| IIRFilterNode coefficients are checked properly | PASS | PASS | PASS | PASS | PASS | — |
| feedforward coefficients can not be empty | PASS | PASS | PASS | FAIL | PASS | — |
| feedback coefficients can not be empty | PASS | PASS | PASS | FAIL | PASS | — |
| more than 20 feedforward coefficients can not be used | PASS | PASS | PASS | FAIL | PASS | — |
| more than 20 feedback coefficients can not be used | PASS | PASS | PASS | FAIL | PASS | — |
| at least one feedforward coefficient must be non-zero | PASS | PASS | PASS | FAIL | PASS | — |
| the first feedback coefficient must be non-zero | PASS | PASS | PASS | FAIL | PASS | — |
| IIRFilterNode getFrequencyResponse handles invalid frequencies properly | PASS | PASS | PASS | FAIL | FAIL | — |