If SSLClientVerify for a <directory> is configured, such as: <Directory "/var/www/html/site"> SSLVerifyClient require SSLVerifyDepth 10 </Directory> And mod rewrite is configured for this site: (via .htaccess in before mentioned directory) RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_URI} !=/favicon.ico RewriteRule ^(.*)$ index.php?q=$1 [L,QSA] Submitting a POST with variables defined do NOT show up on the script/php side. Disabling mod_rewrite or SSLVerifyClient for the path will cause POST variables to be defined.
*** This bug has been marked as a duplicate of bug 43738 ***