dom / latest / messageevent / origin.html /

MessageEvent.origin

The origin read-only property of the MessageEvent interface is a USVString representing the origin of the message emitter.

Value

A USVString representing the origin.

Examples

myWorker.onmessage = function(e) {
  result.textContent = e.data;
  console.log('Message received from worker');
  console.log(e.origin);
};

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
origin
1
12
3
9
≤12.1
4
≤37
18
4
≤12.1
3.2
1.0

See also

  • ExtendableMessageEvent — similar to this interface but used in interfaces that needs to give more flexibility to authors.

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https://developer.mozilla.org/en-US/docs/Web/API/MessageEvent/origin