This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The BroadcastChannel.postMessage() sends a message, which can be of any kind of Object, to each listener in any browser context with the same origin. The message is transmitted as a message event targeted at each BroadcastChannel bound to the channel.
var str = channel.postMessage(object);
| Specification | Status | Comment |
|---|---|---|
| WHATWG HTML Living Standard The definition of 'BroadcastChannel.postmessage()' in that specification. | Living Standard | Initial definition. |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 54.0 | 38 (38) | No support | 41 | No support |
| Available in workers | 54.0 | 38 (38) | No support | 41 | No support |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|
| Basic support | No support | No support | 38.0 (38) | No support | 41 | No support | 54.0 |
| Available in workers | No support | No support | 38.0 (38) | No support | 41 | No support | 54.0 |
BroadcastChannel, the interface it belongs to.
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/BroadcastChannel/postMessage