The WebTransport API transmits data between a client and a server, by using the HTTP/3 protocol.

Compatibility (view on caniuse.com)

• Chrome 97 Released on 2022-01-04
• Chrome Android 97 Released on 2022-01-04
• Edge 97 Released on 2022-01-06
• Firefox 114 Released on 2023-06-06
• Firefox for Android 114 Released on 2023-06-06
• Safari ❌ Search for bugs Search for standards position
• Safari on iOS ❌ Search for bugs Search for standards position

BCD data

• api.WebTransport
• api.WebTransport.WebTransport
• api.WebTransport.close
• api.WebTransport.closed
• api.WebTransport.createBidirectionalStream
• api.WebTransport.datagrams
• api.WebTransport.incomingBidirectionalStreams
• api.WebTransport.incomingUnidirectionalStreams
• api.WebTransport.ready
• api.WebTransportBidirectionalStream
• api.WebTransportBidirectionalStream.readable
• api.WebTransportBidirectionalStream.writable
• api.WebTransportDatagramDuplexStream
• api.WebTransportDatagramDuplexStream.incomingHighWaterMark
• api.WebTransportDatagramDuplexStream.incomingMaxAge
• api.WebTransportDatagramDuplexStream.maxDatagramSize
• api.WebTransportDatagramDuplexStream.outgoingHighWaterMark
• api.WebTransportDatagramDuplexStream.outgoingMaxAge
• api.WebTransportDatagramDuplexStream.readable
• api.WebTransportDatagramDuplexStream.writable
• api.WebTransportError
• api.WebTransportError.WebTransportError
• api.WebTransportError.source
• api.WebTransportError.streamErrorCode
• api.WebTransport.createUnidirectionalStream