SharedWorkerGlobalScope.close()

The close() method of the SharedWorkerGlobalScope interface discards any tasks queued in the SharedWorkerGlobalScope's event loop, effectively closing this particular scope.

Syntax

self.close();

Example

If you want to close your worker instance from inside the worker itself, you can call the following:

close();

close() and self.close() are effectively equivalent — both represent close() being called from inside the worker's inner scope.

Note: There is also a way to stop the worker from the main thread: the Worker.terminate method.

Specifications

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

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic supportChrome No support NoEdge ? Firefox Full support 54IE ? Opera No support NoSafari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support 54Opera Android No support NoSafari iOS ? Samsung Internet Android No support No

Legend

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

General note: In newer browser versions, close() is available on SharedWorkerGlobalScope and DedicatedWorkerGlobalScope. In older browser versions, it is available on WorkerGlobalScope. This change was made to stop close() being available on service workers, as it isn't supposed to be used there and always throws an exception when called (see bug 1336043).

See also

DedicatedWorkerGlobalScope

Document Tags and Contributors

Contributors to this page: ExE-Boss, chrisdavidmills
Last updated by: ExE-Boss,