The cross domain stuff won't work on idevices unless you set the right cors headers.
Use this
http://web-sniffer.net/ and search the forum for cors if you don't load all your resources off the same domain.
I think if you load it on the ipad without CORS headers, you need to get a new ipad for it to work, or change the Url. I cleared cache, quit safari, and rebooted to no effect. A fresh project worked fine.