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 ServiceWorkerClient (en-US) if the client's URL falls within the scope of the registration (the scope option set when ServiceWorkerContainer.register is first called.)
备注： 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 |
|---|
| Service Workers # navigator-service-worker-active |
Browser compatibility
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