MessageEvent: origin property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
Note: This feature is available in Web Workers.
The origin
read-only property of the
MessageEvent
interface is a string representing the
origin of the message emitter.
Value
A string representing the origin.
Examples
js
myWorker.onmessage = (e) => {
result.textContent = e.data;
console.log("Message received from worker");
console.log(e.origin);
};
Specifications
Specification |
---|
HTML Standard # dom-messageevent-origin-dev |
Browser compatibility
BCD tables only load in the browser
See also
ExtendableMessageEvent
— similar to this interface but used in interfaces that needs to give more flexibility to authors.