Super Cache is a chrome extension that I created to control caching behavior from the client side.
- Override caching policy that has been set on the server.
- Select a host on which the caching is required and all requests from a page with that host will be cached.
- Caching of static content which are on a different host will also be cached (read Note for further explanation)
Grab it from Chrome Webstore
Note: say you have a site example.com on which you have set a caching policy thru the extension. Now if the any page on example.com links to external scripts and sites which are on a different domain such as static.example.com or ajax.googleapis.com, the extension will automatically apply the same caching behavior as that of example.com
Caution: Caching takes up disk space, so use the extension carefully.