WebTransportError: streamErrorCode property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Note: This feature is available in Web Workers.

The streamErrorCode read-only property of the WebTransportError interface returns a number in the range 0-255 indicating the application protocol error code for this error, or null if one is not available.

Value

A number, or null.

Examples

js
const url = "not-a-url";

async function initTransport(url) {
  try {
    // Initialize transport connection
    const transport = new WebTransport(url);

    // The connection can be used once ready fulfills
    await transport.ready;

    // ...
  } catch (error) {
    const msg = `Transport initialization failed.
                 Reason: ${error.message}.
                 Source: ${error.source}.
                 Error code: ${error.streamErrorCode}.`;
    console.log(msg);
  }
}

Specifications

Specification
WebTransport
# dom-webtransporterror-streamerrorcode

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
streamErrorCode

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support

See also