WPT
wpt / dom / collections / HTMLCollection-supported-property-names.html
Spec: DOM ↗
Runs: Chrome 155.0.8040.0 (wpt@105b6a3a5, 2026-09-03) | Firefox 157.0a1 (wpt@9b4cabf6d, 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 | 6/6 | 6/6 | 6/6 | 6/6 | 5/6 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Object.getOwnPropertyNames on HTMLCollection | PASS | PASS | PASS | PASS | PASS | — |
| Object.getOwnPropertyNames on HTMLCollection with non-HTML namespace | PASS | PASS | PASS | PASS | PASS | — |
| Object.getOwnPropertyNames on HTMLCollection with expando object | PASS | PASS | PASS | PASS | PASS | — |
| Trying to set an expando that would shadow an already-existing named property | PASS | PASS | PASS | PASS | FAIL | — |
| Trying to set an expando that shadows a named property that gets added later | PASS | PASS | PASS | PASS | PASS | — |
| Trying to set a non-configurable expando that shadows a named property that gets added later | PASS | PASS | PASS | PASS | PASS | — |