Reverse proxy with CORS usin Apache2

For the implementation of a Javascript-Client, I needed a CORS enabled reverse-proxy.

Here is one using apache2 (Virtual Host):

LoadModule proxy_module /usr/lib/apache2/modules/mod_proxy.so
LoadModule proxy_http_module /usr/lib/apache2/modules/mod_proxy_http.so 
LoadModule headers_module /usr/lib/apache2/modules/mod_headers.so


 ProxyRequests Off

 ProxyPass / http://SERVER
 ProxyPassReverse / http://SERVER

 Header set Access-Control-Allow-Origin "*"
 Header set Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept"

Here is one using apache2 (.htaccess): mod_rewrite and mod_headers must be loaded.

RewriteEngine  On
RewriteBase /
RewriteRule  (.*)  http://SERVER/$1  [P,L]

 Header set Access-Control-Allow-Origin "*"
 Header set Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept"

PS: Be aware of the security implications!