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caches

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The global caches read-only property returns the CacheStorage object associated with the current context. This object enables functionality such as storing assets for offline use, and generating custom responses to requests.

Value

A CacheStorage object.

Examples

The following example shows how you'd use a cache in a service worker context to store assets offline. 

this.addEventListener('install', function(event) {
  event.waitUntil(
    caches.open('v1').then(function(cache) {
      return cache.addAll([
        '/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
Service Workers 1
# self-caches

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
caches
40
16
42
No
27
11.1
40
40
42
27
11.3
4.0
worker_support
40
16
42
No
27
11.1
40
40
42
27
11.3
4.0

See also

© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/caches

Name Web APIs
Version
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Last Updated 2022-04-27T09:33:08Z