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
self.oninstall = function(event) { ... };
Examples
The following snippet shows how an install
event handler can be used to populate a cache with a number of responses, which the service worker can then use to serve assets offline:
self.oninstall = function(event) {
event.waitUntil(
caches.open('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
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