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

BCD tables only load in the browser

See also