Web/API/BroadcastChannel/close

The BroadcastChannel.close() terminates the connection to the underlying channel, allowing the object to be garbage collected. This is a necessary step to perform as there is no other way for a browser to know that this channel is not needed anymore.

Note: This feature is available in Web Workers.

Syntax

var str = channel.close();

Example

// Connect to a channel
var bc = new BroadcastChannel('test_channel');

// More operations (like postMessage, …)

// When done, disconnect from the channel
bc.close();

Specifications

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

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`close`	Chrome Full support 54	Edge Full support ≤79	Firefox Full support 38	IE No support No	Opera Full support 41	Safari No support No	WebView Android Full support 54	Chrome Android Full support 54	Firefox Android ?	Opera Android Full support 41	Safari iOS No support No	Samsung Internet Android Full support 6.0

Legend

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