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 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 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

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
navigationPreload

Legend

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Full support
Full support
No support
No support