6.4. Debugging

It can be tough to debug apps that use the offline application cache because there’s very little visibility into what is going on. You find yourself constantly wondering if your files have downloaded, or if you are viewing remote or local resources. Plus, switching your device between online and offline modes is not the snappiest procedure and can really slow down the develop, test, debug cycle.

There are two things you can do to help determine what’s going on when things aren’t playing nice: set up some console logging in JavaScript, and browse the application cache database.