title: Server removes custom HTTP header fields
body: <p>I've been trying to receive HTTP requests with custom fields in the headers but it seems like my server removes them...</p>
  
  <p>This is the request that I am sending to the server (I read that request with a HTTP Proxy) :</p>
  
  <pre><code>POST /oauth.php/request_token HTTP/1.1
  Host: domain.com
  User-Agent: DearStranger/1.0 CFNetwork/485.12.7 Darwin/10.6.0
  Authorization: OAuth realm="", oauth_consumer_key="ebb942f0d260b06cb533c6133c28408004d343197", oauth_signature_method="HMAC-SHA1", oauth_signature="qPBFAa8XRRbor2%2F%2FQXv6kU3%2F7jU%3D", oauth_timestamp="1295278460", oauth_nonce="E7D6AC76-74CE-4951-8182-7EBF9B382E7E", oauth_version="1.0"
  Accept: */*
  Accept-Language: en-us
  Accept-Encoding: gzip, deflate
  Pragma: no-cache
  Content-Length: 0
  Connection: keep-alive
  Proxy-Connection: keep-alive
  </code></pre>
  
  <p>I printed the headers of the request when I arrive on my page.php. I see that :</p>
  
  <pre><code>uri http://domain.com/oauth.php/request_token
  parameters 
  headers Array
  .... Accept : */*
  .... Accept-Encoding : gzip, deflate
  .... Accept-Language : en-us
  .... Connection : keep-alive
  .... Host : domain.com
  .... User-Agent : DearStranger/1.0 CFNetwork/485.12.7 Darwin/10.6.0
  method POST
  </code></pre>
  
  <p>when I should be seeing that (it is working on a local version)</p>
  
  <pre><code>uri http://localhost:8888/oauth.php/request_token
  parameters 
  headers Array
  .... Accept : */*
  .... Accept-Encoding : gzip, deflate
  .... Accept-Language : en-us
  .... Authorization : OAuth realm="", oauth_consumer_key="582d95bd45d455fa2e5819f88fc0c5a104d2c7ff3", oauth_signature_method="HMAC-SHA1", oauth_signature="agPSFdtlGxXv2sbrz3pRjHlROOE%3D", oauth_timestamp="1295272680", oauth_nonce="667A133C-5071-48AB-9F13-8146425E46B7", oauth_version="1.0"
  .... Connection : keep-alive
  .... Content-Length : 0
  .... Host : localhost:8888
  .... User-Agent : DearStranger/1.0 CFNetwork/485.12.7 Darwin/10.6.0
  method POST
  </code></pre>
  
  <p>I am using php 5.2.17 on the server.</p>
  
  <p>Do you have any idea to help me fix that issue?</p>
  
  <p>Thanks!</p>