title: Apache https redirection results in 400 error
body: <p>This issue is happening on a Red Hat instance. The apache installed is version [Apache/2.2.19] and the mod_ssl version is [2.2.16.]
  HTTP access works fine, but when mod_rewrite is enabled for http to https redirection, it results in following 400 Error:</p>
  
  <pre><code>Bad Request
  
  Your browser sent a request that this server could not understand.
  Request header field is missing ':' separator.
  </code></pre>
  
  <p>The error in Apache's error_log file is:</p>
  
  <pre><code>request failed: error reading the headers
  </code></pre>
  
  <p>The similar setup is working in another environment. Can someone please help me to resolve this.</p>
  
  <p>Thanks
  Noman A.</p>