caching enabled for HTTPS
Google is making a push to encourage all websites to use HTTPS by default, and we're doing our part to help make that happen. One step in this direction is to enable page caching for HTTPS connections. We've always cached pages over HTTP, but now we've also added for secure connections. There's nothing that needs to be done to take advantage of this new feature. Your site is already being cached, and now will also serve up cached content over HTTPS too.