ServiceWorkerRegistration.active

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 Client 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.

Note: Once an active worker is activating, neither a runtime script error nor a force termination of the active worker prevents the active worker from getting activated.

Syntax

var serviceWorker = serviceWorkerRegistration.active;

Value

A ServiceWorker object's property, 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

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See also