In global configuration I have buffering set to conservative, compression enabled and in JCH Optimize settings set like this (Tak means yes in Polish :)
On http://checkgzipcompression.com/ they say:
YES, it's GZIP enabled!
Uncompressed size:85,908 bytes Compressed size:17,648 bytes By compressing this page with GZIP, 79.5% bandwidth was saved.
But, when I open PageSpeed Insights for Chrome, it tells me to turn on the compression to reduce transfer by 185.1 KB (74%). It also lists the files that are not compressed (css and js) - and all of them are inside 'plugins' or 'modules' directories (for example /plugins/system/jcemediabox/js/jcemediabox.js?f164ea24e8567d41a795089153b69cd9 - from JCE plugin)
So the question is, how to tell Joomla to compress not only files from the template but also from other directories?
Joomla 3.35, JCH 4.1.1.