The ServiceWorkerGlobalScope.caches read-only property returns the CacheStorage object associated with the service worker.


var myCacheStorage = self.caches;


A CacheStorage object.


Specification Status Comment
Service Workers
The definition of 'ServiceWorkerGlobalScope.caches' in that specification.
Working Draft Initial definition.

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 40.0 44.0 (44.0)[1] No support ? No support
Feature Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support ? 44.0 (44.0) (Yes) No support ? No support ?

[1] Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR.)

See also

Document Tags and Contributors

 Contributors to this page: chrisdavidmills, rolfedh, Speculative
 Last updated by: chrisdavidmills,