I have successfully installed Koken on my on virtual private server (including root access). I have globally mod_pagespeed (Apache 2.4.25) in use with the following parameters:
# Turn on mod_pagespeed. To completely disable mod_pagespeed, you
# can set this to "off".
All my other virtual hosts make use of that configuration, but my virtual host with Koken does not.
Running my site at https://ismodpagespeedworking.com/ with my domain (sven-flock.de) shows a valid header but looking at the source code from the page nothing has happend (e.g. combine all css files). For some reason, it is completely ignored. My other virtual host (https://ziin.de) shares above settings and everything is working here).
Is there some rewrite rule or other setting active which blocks mod_pagespeed?
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