The BroadcastChannel.postMessage()
sends a message, which can be of any kind of Object
, to each listener in any browsing context with the same origin. The message is transmitted as a message
event targeted at each BroadcastChannel
bound to the channel.
Note: This feature is available in Web Workers.
Syntax
var str = channel
.postMessage(object);
Specifications
Specification | Status | Comment |
---|---|---|
HTML Living Standard The definition of 'BroadcastChannel.postmessage()' in that specification. |
Living Standard | Initial definition. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
postMessage | Chrome Full support 54 | Edge Full support ≤79 | Firefox Full support 38 | IE No support No | Opera Full support 41 | Safari No support No | WebView Android Full support 54 | Chrome Android Full support 54 | Firefox Android ? | Opera Android Full support 41 | Safari iOS No support No | Samsung Internet Android Full support 6.0 |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
See also
BroadcastChannel
, the interface it belongs to.