The BroadcastChannel() constructor creates a new BroadcastChannel and connects it to the underlying channel.

Note: This feature is available in Web Workers.


 channel = new BroadcastChannel(channel);


Is a DOMString representing the name of the channel; there is one single channel with this name for all browsing contexts with the same origin.


// create a new channel listening to the "internal_notification" channel.

var bc = new BroadcastChannel('internal_notification');
bc.postMessage('New listening connected!');


Specification Status Comment
HTML Living Standard
The definition of 'BroadcastChannel()' in that specification.
Living Standard Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support54 ?38 No41 No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support5454 ? ?41 No6.0

See also

Document Tags and Contributors

Contributors to this page: Pamplemousse, fscholz, chrisdavidmills, nmve, jpmedley, adria, teoli
Last updated by: Pamplemousse,