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 |
|---|---|---|
| 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