title: Get Header value of response in asp.net page with dashes
body: <p>I know this is easy but I cant get this to work.  I have a response header below.</p>
  
  <pre><code>X-Exposure-Server:EastUS2
  </code></pre>
  
  <p>I am spitting it out like this</p>
  
  <pre><code>&lt;span&gt;@Response.Headers["X-Exposure-Server"]&lt;/span&gt;
  </code></pre>
  
  <p>However, it's blank.  Why?</p>
  
  <p><strong>Response Headers</strong></p>
  
  <pre><code>HTTP/1.1 200 OK
  Cache-Control: private
  Content-Type: text/html; charset=utf-8
  Content-Encoding: gzip
  Vary: Accept-Encoding
  Server: Microsoft-IIS/8.5
  X-AspNetMvc-Version: 5.2
  X-AspNet-Version: 4.0.30319
  X-Powered-By: ASP.NET
  X-Exposure-Server: EastUS2
  Access-Control-Allow-Origin: *
  X-UA-Compatible: IE=Edge,chrome=1
  Date: Tue, 19 Apr 2016 04:39:53 GMT
  Content-Length: 11017
  </code></pre>