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
Note:This feature is available in Web Workers.
var str = channel.postMessage(object);
|HTML Living Standard
The definition of 'BroadcastChannel.postmessage()' in that specification.
|Living Standard||Initial definition.|
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BroadcastChannel, the interface it belongs to.