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

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); } }