Web/API/ServiceWorkerGlobalScope/skipWaiting

The ServiceWorkerGlobalScope.skipWaiting() method of the ServiceWorkerGlobalScope forces the waiting service worker to become the active service worker.

Use this method with Clients.claim() to ensure that updates to the underlying service worker take effect immediately for both the current client and all other active clients.

Syntax

ServiceWorkerGlobalScope.skipWaiting().then(function() {
  //Do something
});

Returns

A Promise that immediately resolves with undefined.

Example

While self.skipWaiting() can be called at any point during the service worker's execution, it will only have an effect if there's a newly installed service worker that might otherwise remain in the waiting state. Therefore, it's common to call self.skipWaiting() from inside of an InstallEvent handler.

The following example causes a newly installed service worker to progress into the activating state, regardless of whether there is already an active service worker.

self.addEventListener('install', function(event) {
  // The promise that skipWaiting() returns can be safely ignored.
  self.skipWaiting();

  // Perform any other actions required for your
  // service worker to install, potentially inside
  // of event.waitUntil();
});

Specifications

Specification	Status	Comment
Service WorkersThe definition of 'skipWaiting()' in that specification.	Working Draft	Initial definition.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`skipWaiting` Experimental'	Chrome Full support 40	Edge Full support ≤79	Firefox Full support 44 Notes' Full support 44 Notes' Notes' Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE No support No	Opera Full support 24	Safari No support No	WebView Android Full support 40	Chrome Android Full support 40	Firefox Android Full support 44	Opera Android Full support 24	Safari iOS No support No	Samsung Internet Android Full support 4.0

Legend

Full support: Full support
No support: No support
Experimental. Expect behavior to change in the future.': Experimental. Expect behavior to change in the future.
See implementation notes.': See implementation notes.