I ve added these options :
<FilesMatch "\.(html|htm|rtf|rtx|svg|svgz|txt|xsd|xsl|xml|HTML|HTM|RTF|RTX|SVG|SVGZ|TXT|XSD|XSL|XML)$">
FileETag MTime Size
<IfModule mod_headers.c>
Header set Pragma "public"
Header append Cache-Control "public"
Header set...