I'm experiencing the issue described here.
Some .htm/.html files show up as blank when pagespeed is enabled.
Seems to be no solution right now other than disabling Pagespeed processing .htm/.html files which I'm fine with as a workaround as I only have a few of them to worry about.
However, in my pagespeed.conf (/etc/httpd/conf.d/pagespeed.conf) when I try to disallow this it has no effect:
<IfModule pagespeed_module>
# Turn on mod_pagespeed. To completely disable mod_pagespeed, you
# can set this to "off".
# ModPagespeed off
ModPagespeedDisallow "*.htm"
ModPagespeedDisallow "*.html"
# ...
</IfModule>
Am I putting the ModPagespeedDisallow directives in the right place?