WebSocket: error event
{{APIRef("WebSockets API")}} {{AvailableInWorkers}}
The error event is fired when a connection with a WebSocket has been closed due to an error (some data couldn’t be sent for example).
Syntax
Use the event name in methods like {{domxref("EventTarget.addEventListener", "addEventListener()")}} , or set an event handler property.
addEventListener("error", (event) => {});
onerror = (event) => {};
Event type
A generic {{domxref("Event")}} .
Examples
// Create WebSocket connection
const socket = new WebSocket("ws://localhost:8080");
// Listen for possible errors
socket.addEventListener("error", (event) => {
console.log("WebSocket error: ", event);
});
Specifications
{{Specifications}}
Browser compatibility
{{Compat}}