WPT
wpt / webtransport / idlharness.https.sub.any.worker.html
Spec: WebTransport ↗
Runs: Chrome 155.0.8039.0 (wpt@d0c38285b, 2026-09-03) | Firefox 157.0a1 (wpt@ed1909ed6, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-56c61 (wpt@cc4d45aa0, 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 | 106/121 | 102/121 | 1/121 | 1/121 | 1/121 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| idl_test setup | PASS | PASS | FAIL | FAIL | FAIL | — |
| idl_test validation | PASS | PASS | PASS | PASS | PASS | — |
| WebTransportDatagramsWritable interface: existence and properties of interface object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramsWritable interface object length | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramsWritable interface object name | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramsWritable interface: existence and properties of interface prototype object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramsWritable interface: existence and properties of interface prototype object's "constructor" property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramsWritable interface: existence and properties of interface prototype object's @@unscopables property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramsWritable interface: attribute sendGroup | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramsWritable interface: attribute sendOrder | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface: existence and properties of interface object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface object length | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface object name | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface: existence and properties of interface prototype object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface: existence and properties of interface prototype object's "constructor" property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface: existence and properties of interface prototype object's @@unscopables property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface: operation createWritable(optional WebTransportSendOptions) | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface: attribute readable | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface: attribute maxDatagramSize | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface: attribute incomingMaxAge | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface: attribute outgoingMaxAge | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface: attribute incomingMaxBufferedDatagrams | PASS | FAIL | FAIL | FAIL | FAIL | — |
| WebTransportDatagramDuplexStream interface: attribute outgoingMaxBufferedDatagrams | PASS | FAIL | FAIL | FAIL | FAIL | — |
| WebTransport interface: existence and properties of interface object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface object length | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface object name | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: existence and properties of interface prototype object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: existence and properties of interface prototype object's "constructor" property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: existence and properties of interface prototype object's @@unscopables property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: operation getStats() | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: operation exportKeyingMaterial(BufferSource, BufferSource, unsigned long) | FAIL | FAIL | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute ready | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute reliability | FAIL | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute congestionControl | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute anticipatedConcurrentIncomingUnidirectionalStreams | PASS | FAIL | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute anticipatedConcurrentIncomingBidirectionalStreams | PASS | FAIL | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute responseHeaders | PASS | FAIL | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute protocol | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute closed | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute draining | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: operation close(optional WebTransportCloseInfo) | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute datagrams | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: operation createBidirectionalStream(optional WebTransportSendStreamOptions) | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute incomingBidirectionalStreams | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: operation createUnidirectionalStream(optional WebTransportSendStreamOptions) | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute incomingUnidirectionalStreams | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: operation createSendGroup() | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: attribute supportsReliableOnly | FAIL | FAIL | FAIL | FAIL | FAIL | — |
| WebTransport must be primary interface of webTransport | PASS | PASS | FAIL | FAIL | FAIL | — |
| Stringification of webTransport | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "getStats()" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "exportKeyingMaterial(BufferSource, BufferSource, unsigned long)" with the proper type | FAIL | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: calling exportKeyingMaterial(BufferSource, BufferSource, unsigned long) on webTransport with too few arguments must throw TypeError | FAIL | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "ready" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "reliability" with the proper type | FAIL | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "congestionControl" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "anticipatedConcurrentIncomingUnidirectionalStreams" with the proper type | PASS | FAIL | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "anticipatedConcurrentIncomingBidirectionalStreams" with the proper type | PASS | FAIL | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "responseHeaders" with the proper type | PASS | FAIL | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "protocol" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "closed" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "draining" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "close(optional WebTransportCloseInfo)" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: calling close(optional WebTransportCloseInfo) on webTransport with too few arguments must throw TypeError | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "datagrams" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "createBidirectionalStream(optional WebTransportSendStreamOptions)" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: calling createBidirectionalStream(optional WebTransportSendStreamOptions) on webTransport with too few arguments must throw TypeError | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "incomingBidirectionalStreams" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "createUnidirectionalStream(optional WebTransportSendStreamOptions)" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: calling createUnidirectionalStream(optional WebTransportSendStreamOptions) on webTransport with too few arguments must throw TypeError | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "incomingUnidirectionalStreams" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "createSendGroup()" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransport interface: webTransport must inherit property "supportsReliableOnly" with the proper type | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendStream interface: existence and properties of interface object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendStream interface object length | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendStream interface object name | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendStream interface: existence and properties of interface prototype object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendStream interface: existence and properties of interface prototype object's "constructor" property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendStream interface: existence and properties of interface prototype object's @@unscopables property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendStream interface: attribute sendGroup | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendStream interface: attribute sendOrder | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendStream interface: operation getStats() | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendStream interface: operation getWriter() | FAIL | FAIL | FAIL | FAIL | FAIL | — |
| WebTransportSendGroup interface: existence and properties of interface object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendGroup interface object length | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendGroup interface object name | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendGroup interface: existence and properties of interface prototype object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendGroup interface: existence and properties of interface prototype object's "constructor" property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendGroup interface: existence and properties of interface prototype object's @@unscopables property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportSendGroup interface: operation getStats() | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportReceiveStream interface: existence and properties of interface object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportReceiveStream interface object length | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportReceiveStream interface object name | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportReceiveStream interface: existence and properties of interface prototype object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportReceiveStream interface: existence and properties of interface prototype object's "constructor" property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportReceiveStream interface: existence and properties of interface prototype object's @@unscopables property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportReceiveStream interface: operation getStats() | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportBidirectionalStream interface: existence and properties of interface object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportBidirectionalStream interface object length | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportBidirectionalStream interface object name | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportBidirectionalStream interface: existence and properties of interface prototype object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportBidirectionalStream interface: existence and properties of interface prototype object's "constructor" property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportBidirectionalStream interface: existence and properties of interface prototype object's @@unscopables property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportBidirectionalStream interface: attribute readable | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportBidirectionalStream interface: attribute writable | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportWriter interface: existence and properties of interface object | FAIL | FAIL | FAIL | FAIL | FAIL | — |
| WebTransportWriter interface object length | FAIL | FAIL | FAIL | FAIL | FAIL | — |
| WebTransportWriter interface object name | FAIL | FAIL | FAIL | FAIL | FAIL | — |
| WebTransportWriter interface: existence and properties of interface prototype object | FAIL | FAIL | FAIL | FAIL | FAIL | — |
| WebTransportWriter interface: existence and properties of interface prototype object's "constructor" property | FAIL | FAIL | FAIL | FAIL | FAIL | — |
| WebTransportWriter interface: existence and properties of interface prototype object's @@unscopables property | FAIL | FAIL | FAIL | FAIL | FAIL | — |
| WebTransportWriter interface: operation atomicWrite(optional any) | FAIL | FAIL | FAIL | FAIL | FAIL | — |
| WebTransportWriter interface: operation commit() | FAIL | FAIL | FAIL | FAIL | FAIL | — |
| WebTransportError interface: existence and properties of interface object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportError interface object length | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportError interface object name | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportError interface: existence and properties of interface prototype object | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportError interface: existence and properties of interface prototype object's "constructor" property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportError interface: existence and properties of interface prototype object's @@unscopables property | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportError interface: attribute source | PASS | PASS | FAIL | FAIL | FAIL | — |
| WebTransportError interface: attribute streamErrorCode | PASS | PASS | FAIL | FAIL | FAIL | — |