title: How to send lower-case Keep-Alive header through HttpWebRequest
body: <p>I'm writing a bot, which should emulate firefox as closely as possible.
  By examining the headers that it is sending, I've found one minor difference, that I do not know how to get rid off:</p>
  
  <p>Firefox uses following keep-alive header:</p>
  
  <pre><code>Connection: keep-alive
  </code></pre>
  
  <p>While c# always sends out:</p>
  
  <pre><code>Connection: Keep-Alive
  </code></pre>
  
  <p>I know that it probably does not matter, but I'd still love to know if there is any way/hack  to modify that header to be all lower case.</p>
  
  <p>Any ideas how to do this?</p>