WebSocket.onerror

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 event handler which is executed whenever an error event occurs on the WebSocket connection.

Example

webSocket.onerror = function(event) {
  console.error("WebSocket error observed:", event);
};

Specifications

Browser compatibility