The Application Cache is no longer a Douchebag

If you have ever used the application cache you will probably be familiar with how easy it is to break offline functionality and how difficult it is to work out why things are broken. With a large offline web app finding the source of problems can be an almost insurmountable task. I guess that what I am saying is that the application cache is a douchebag. I completely understand that if there is an error in your application's manifest you…