Hello, I hope you could help me here. I have a RewriteRule which gives you a crossdomain.xml file depending on the domain name. I have it in a way that ignores the ".dev." string in the middle, example: Request: http://site1.dev.mydomain.com/crossdomain.xml Returns file: /etc/httpd/conf/crossdomain/site.mydomain.com.xml RewriteCond %{HTTP_HOST} "^(.*)\.dev\.(.*)" RewriteCond %{REQUEST_URI} "/crossdomain.xml" enter code hereRewriteRule ^(.+) %{HTTP_HOST}$1 [C] RewriteRule ^(.*)\.dev\.([^/]*)/crossdomain.xml /etc/httpd/conf/crossdomain/$1.$2.xml [L] Question: How do I check if the file exists? I tried adding this on top but it doesn't work: RewriteCond /etc/httpd/conf/crossdomain/$1.$2.xml -f I guess because it is a chained rule, no idea. Please help.