The disable() method of the NavigationPreloadManager interface halts the automatic preloading of service-worker-managed resources previously started using enable() It returns a promise that resolves with undefined.

The method may be called in the service worker's activate event handler (before the fetch event handler can be called).

None.

A Promise that resolves with undefined.

InvalidStateError DOMException

There is no active worker associated with the registration to which this NavigationPreloadManager belongs.

The code below shows how to disable preloading, after first using ServiceWorkerRegistration.navigationPreload to test that it is supported.

addEventListener("activate", (event) => {
  event.waitUntil(
    (async () => {
      if (self.registration.navigationPreload) {
        // Disable navigation preloads!
        await self.registration.navigationPreload.disable();
      }
    })(),
  );
});