I have a Wordpress site that my client wants to validate perfectly (using W3C validator). One of the issues is Google's pagespeed, which seems to be enabled by default by hosting provider.
I try to disable mod_pagespeed in .htaccess file with the following, but it doesn't work for some reason:
<IfModule pagespeed_module>
ModPagespeed off
</IfModule>
I can disable it by adding "?ModPagespeed=off" to URL, but this does not solve my problem.
Is there anything else I can try? I only have access via FTP (no server conf access, no c-panel access, etc.).