MessageEvent.origin

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

Syntax

var origin = messageEvent.origin;

Value

A USVString representing the origin.

Example

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

Specifications

Specification Status Comment
Unknown
The definition of 'origin' in that specification.
Unknown Initial definition

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support1 ?49 ?10
Returns USVString (was previously DOMString) Yes ?55 No ? ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support ? ? ?4 ?3 ?
Returns USVString (was previously DOMString) ? ? ?55 ? ? ?

See also

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

Document Tags and Contributors

Contributors to this page: fscholz, chrisdavidmills
Last updated by: fscholz,