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The BroadcastChannel interface represents a named channel that any browsing context of a given origin can subscribe to. It allows communication between different documents (in different windows, tabs, frames or iframes) of the same origin. Messages are broadcasted via a message event fired at all BroadcastChannel objects listening to the channel.

Note: This feature is available in Web Workers.

Constructor

BroadcastChannel()
Creates an object linking to the named channel.

Properties

This interface also inherits properties from its parent, EventTarget.

BroadcastChannel.name
Returns a DOMString, the name of the channel.

Event handlers

BroadcastChannel.onmessage
An EventHandler property that specifies the function to execute when a message event is fired on this object.
BroadcastChannel.onmessageerror
An EventHandler called when a MessageEvent of type MessageError is fired—that is, when it receives a message that cannot be deserialized.

Methods

This interface also inherits methods from its parent, EventTarget.

BroadcastChannel.postMessage()
Sends the message, of any type of object, to each BroadcastChannel object listening to the same channel.
BroadcastChannel.close()
Closes the channel object, indicating it won't get any new messages, and allowing it to be, eventually, garbage collected.

Events

message
Fired when when a message arrives on the channel.
Also available via the onmessage property.
messageerror
Fired when a message arrives that can't be deserialized.
Also available via the onmessageerror property.

Specifications

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

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
BroadcastChannelChrome Full support 54Edge ? Firefox Full support 38IE No support NoOpera Full support 41Safari No support NoWebView Android Full support 54Chrome Android Full support 54Firefox Android ? Opera Android Full support 41Safari iOS No support NoSamsung Internet Android Full support 6.0
BroadcastChannel() constructorChrome Full support 54Edge ? Firefox Full support 38IE No support NoOpera Full support 41Safari No support NoWebView Android Full support 54Chrome Android Full support 54Firefox Android ? Opera Android Full support 41Safari iOS No support NoSamsung Internet Android Full support 6.0
message eventChrome Full support 54Edge ? Firefox Full support 38IE No support NoOpera Full support 41Safari No support NoWebView Android Full support 54Chrome Android Full support 54Firefox Android ? Opera Android Full support 41Safari iOS No support NoSamsung Internet Android Full support 6.0
messageerror eventChrome Full support 60Edge ? Firefox Full support 57IE No support NoOpera Full support 47Safari No support NoWebView Android Full support 60Chrome Android Full support 60Firefox Android ? Opera Android Full support 47Safari iOS No support NoSamsung Internet Android No support No
nameChrome Full support 54Edge ? Firefox Full support 38IE No support NoOpera Full support 41Safari No support NoWebView Android Full support 54Chrome Android Full support 54Firefox Android ? Opera Android Full support 41Safari iOS No support NoSamsung Internet Android Full support 6.0
onmessageChrome Full support 54Edge ? Firefox Full support 38IE No support NoOpera Full support 41Safari No support NoWebView Android Full support 54Chrome Android Full support 54Firefox Android ? Opera Android Full support 41Safari iOS No support NoSamsung Internet Android Full support 6.0
onmessageerrorChrome Full support 60Edge ? Firefox Full support 57IE No support NoOpera Full support 47Safari No support NoWebView Android Full support 60Chrome Android Full support 60Firefox Android ? Opera Android Full support 44Safari iOS No support NoSamsung Internet Android No support No
closeChrome Full support 54Edge ? Firefox Full support 38IE No support NoOpera Full support 41Safari No support NoWebView Android Full support 54Chrome Android Full support 54Firefox Android ? Opera Android Full support 41Safari iOS No support NoSamsung Internet Android Full support 6.0
postMessageChrome Full support 54Edge ? Firefox Full support 38IE No support NoOpera Full support 41Safari No support NoWebView Android Full support 54Chrome Android Full support 54Firefox Android ? Opera Android Full support 41Safari iOS No support NoSamsung Internet Android Full support 6.0

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown

See also

Εθελοντές και ετικέτες εγγράφου

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