@sLa NGjI's
there seems to be a problem with your post on .htaccess rules. Most of it is in keeping with the similar stuff found on httpd.apache.org but there is a missing character in the part:
#
RewriteCond %{ENV:REDIRECT_STATUS} 200
RewriteRule .* - [L
#
I think it should be [L].
With the [L » 500 Internal Server Error
With the [L] » 200 OK