caches

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.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

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", (event) => {
  event.waitUntil(
    caches
      .open("v1")
      .then((cache) =>
        cache.addAll([
          "/",
          "/index.html",
          "/style.css",
          "/app.js",
          "/image-list.js",
          "/star-wars-logo.jpg",
          "/gallery/",
          "/gallery/bountyHunters.jpg",
          "/gallery/myLittleVader.jpg",
          "/gallery/snowTroopers.jpg",
        ])
      )
  );
});

Specifications

Specification
Service Workers
# self-caches

Browser compatibility

BCD tables only load in the browser

See also