AddType text/cache-manifest .manifest
# Firefox's appcache is extremely buggy. I don't really know what's wrong, but
# somehow it is requesting resources when it shouldn't, and sometimes not
# correctly invalidating the cache. Setting the following options magically
# eliminates these problems while not killing the actual PURPOSE of the
# appcache. Browsers who don't support the appcache probably get pretty slow
# with this.
Header set Pragma "no-cache"
Header set Cache-Control "no-cache"