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ServiceWorkerGlobalScope.oninstall

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 compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 40 ? 44
44
Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR).
No 24 11.1
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 40 40 ? 44 24 11.1 4.0

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerGlobalScope/oninstall