I'm experimenting with application cache based on this example: http://html5demos.com/html5demo.manifest

This example works fine in ff, but when I create analogous site (almost identical) I get only status "UNCACHED (numeric value 0) -- The ApplicationCache object's cache host is not associated with an application cache at this time."

I work on xampp and I've set correct mime-type. When the page is loading ff "is asking to store data on your computer for offline use" and when I show Tools -> Options -> Advanced -> Network -> Offline data there is localhost but with 0B size.