CloseEvent: reason property
Note: This feature is available in Web Workers.
The reason read-only property of the CloseEvent interface returns the WebSocket connection close reason the server gave for closing the connection; that is, a concise human-readable prose explanation for the closure.
Value
A string.
Examples
The following example prints the value of reason to the console.
js
WebSocket.onclose = (event) => {
console.log(event.reason);
};
Specifications
Browser compatibility
See also
- RFC 6455 (the WebSocket Protocol specification)