ServiceWorkerRegistration: navigationPreload property
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 navigationPreload
read-only property of the ServiceWorkerRegistration
interface returns the NavigationPreloadManager
associated with the current service worker registration.
The returned object allows resources managed by a service worker to be preemptively downloaded in parallel with service worker boot up.
Value
An instance of NavigationPreloadManager
.
Specifications
Specification |
---|
Service Workers # service-worker-registration-navigationpreload |
Browser compatibility
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