The WebSocket interface's
onerror event handler property is a function which gets
called when an error occurs on the WebSocket.
You can also add an error event handler using
addEventListener().
Syntax
webSocket.onerror = eventHandler;Value
A function or EventHandler which is executed whenever an
error event occurs on the WebSocket connection.
Example
webSocket.onerror = function(event) {
console.error("WebSocket error observed:", event);
};Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'WebSocket: onerror' in that specification. |
Living Standard | Initial definition |
Browser compatibility
BCD tables only load in the browser