title: .htaccess rewriting with the [P] proxy flag
body: <p>I am trying to do an invisible (transparent ?) rewrite via .htaccess and the proxy flag. It works with the [R] flag but not with the [P] flag because it just gives a 500 error. The two domains are on separate servers and the mod_proxy module is enabled. Is my .htaccess correct?</p>
  
  <pre><code>Options +FollowSymLinks
  RewriteEngine On
  RewriteBase /
  RewriteCond %{HTTP_HOST}    =one.com
  RewriteRule ^(.*)$          http://two.com/$1 [P]
  </code></pre>