jeroen-corteville/izegem/master/.htaccess

<IfModule mod_headers.c>
    # WEEK
    <FilesMatch ".(jpg|jpeg|png|gif|swf)$">
        Header set Cache-Control "max-age=604800, public"
    </FilesMatch>

    # WEEK
    <FilesMatch ".(js|css|swf)$">
        Header set Cache-Control "max-age=604800"
    </FilesMatch>
</IfModule>

On Github License