title: Apache LimitRequestFieldSize Directive does not work
body: <p>I'm running my website on apache 2.2 and when the HTTP request header size is above 8K I get a HTTP 400 error - </p>
  
  <p><strong>Bad Request<br>
  Your browser sent a request that this server could not understand.<br>
  Size of a request header field exceeds server limit.<br>
  cookie /n</strong></p>
  
  <p>And the error in Apache error_log is -
  <code>[Fri Jul 24 18:52:56 2015] [error] [client XX.XX.XX.XX] request failed: error reading the headers</code></p>
  
  <p>This is expected but when I set allowed limit to 16k by -</p>
  
  <pre><code>LimitRequestFieldSize 16380
  </code></pre>
  
  <p>I still get the same HTTP 400 error on the browser but this time I don't see any error apache error_log.</p>
  
  <p>I have tried using higher values with LimitRequestLine and LimitRequestFields but it doesn't work. Is there any thing I'm missing here ? </p>