ServiceWorkerRegistration.active

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The active property of the ServiceWorkerRegistration interface returns a service worker whose ServiceWorker.state is activating or activated. This property is initially set to null.

An active worker controls a ServiceWorkerClient if the client's URL falls within the scope of the registration (the scope option set when ServiceWorkerContainer.register is first called.)

Note: This feature is available in Web Workers.

Syntax

sw = ServiceWorker.active 

Value

A ServiceWorker object, if it is currently in an activating or activated state.

Specifications

 
Specification Status Comment
Service Workers
The definition of 'ServiceWorkerRegistration.active' in that specification.
Working Draft Initial definition.
 

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support40

161

17

442 No27 No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support4040 ?4427 No4.0

1. From version 16: this feature is behind the Enable service workers preference.

2. Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR).

See also

Document Tags and Contributors

Contributors to this page: ExE-Boss, abbycar, chrisdavidmills, fscholz, jpmedley, kscarfone
Last updated by: ExE-Boss,