ServiceWorkerGlobalScope.oninstall

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The oninstall property of the ServiceWorkerGlobalScope interface is an event handler fired whenever an install event occurs (when the service worker installs). This happens before activation.

Syntax

ServiceWorkerGlobalScope.oninstall = function(event) { ... };
ServiceWorkerGlobalScope.addEventListener('install', function(event) { ... });

Example

The following snippet comes from Using Service Workers; go there for more details.

this.addEventListener('install', function(event) {
  event.waitUntil(
   caches.create('v1').then(function(cache) {
         return cache.add(
        '/sw-test/',
        '/sw-test/index.html',
        '/sw-test/style.css',
        '/sw-test/app.js',
        '/sw-test/image-list.js',
        '/sw-test/star-wars-logo.jpg',
        '/sw-test/gallery/',
        '/sw-test/gallery/bountyHunters.jpg',
        '/sw-test/gallery/myLittleVader.jpg',
        '/sw-test/gallery/snowTroopers.jpg'
     );
   })
   );
});

Specifications

Specification Status Comment
Service Workers
The definition of 'Event Handlers' in that specification.		 Working Draft Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 40.0 44.0 (44.0)[1] No support ? No support
Feature Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support ? 44.0 (44.0) (Yes) No support ? No support 40.0

[1] Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR.)

See also

Document Tags and Contributors

Tags: 
 Contributors to this page: chrisdavidmills, jpmedley, kscarfone
 Last updated by: chrisdavidmills,