ServiceWorkerRegistration: active property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Note: This feature is available in Web Workers.
The active read-only 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:
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.
Value
A ServiceWorker object's property, if it is currently in an
activating or activated state.
Specifications
| Specification |
|---|
| Service Workers # navigator-service-worker-active |
Browser compatibility
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