HTML 5 Appcache works in safari/opera/chrome but not firefox

Question

I have an html5 appcache running on a website, it works fine in Safari, Opera and Chrome but it fails to work on Firefox.

I have the following in my code:

Answer 1

I had a similar problem. The problem was that FireFox cache file more aggressively, so I had to add these headers:

For the manifest:

Pragma: no-cache
Cache-Control: no-cache
Expires: date

And for the files:

Last-Modified: date
Cache-Control: no-cache
Expires: date

Replace date by the RFC 1123 formated current date.