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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
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.
SyntaxEdit
sw = ServiceWorker.active
Value
A ServiceWorker object, if it is currently in an activating or activated state.
SpecificationsEdit
| Specification | Status | Comment |
|---|---|---|
| Service Workers The definition of 'ServiceWorkerRegistration.active' in that specification. |
Working Draft | Initial definition. |
Browser compatibilityEdit
[1] Service workers (and Push) have been disabled in the Firefox 45 Extended Support Release (ESR.)