Hello, I have been struggling to make mod_sed work through .htaccess. Here is my .htaccess file: Options +FollowSymlinks <IfModule mod_sed.c> AddOutputFilter Sed html OutputSed "s/monday/MON/g" </IfModule> When I use this I get http error 500 (internal server error). What am I doing wrong? The mod is installed successfully: httpd -M | grep sed Syntax OK sed_module (shared)