ServiceWorkerRegistration: navigationPreload 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 2022.
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 |
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| Service Workers Nightly # service-worker-registration-navigationpreload |
Browser compatibility
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navigationPreload
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Legend
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- Full support
- Full support
- No support
- No support