Aktiver gzip per virtualhost

http://httpd.apache.org/docs/2.4/mod/mod_deflate.html Se BREACH og https://wiki.crashtest-security.com/prevent-ssl-breach

SetOutputFilter DEFLATE
       BrowserMatch ^Mozilla/4 gzip-only-text/html
       BrowserMatch ^Mozilla/4\.0[678] no-gzip
       BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
       SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png|zip|gz|tgz|htc)$ no-gzip dont-vary
       # BREACH migitation
       SetEnvIfNoCase Referer .* self_referer=no
       SetEnvIfNoCase Referer ^https://www\.example\.org/ self_referer=yes
       SetEnvIf self_referer ^no$ no-gzip
       Header append Vary User-Agent env=!dont-vary