CloseEvent: reason property
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
Specification |
---|
WebSockets Standard # ref-for-dom-closeevent-reason② |
Browser compatibility
BCD tables only load in the browser
See also
- RFC 6455 (the WebSocket Protocol specification)