title: WebAPI passed post parameters is null
body: <p>I'm testing with WebAPI 2 and I have created the following controller method.</p>
  
  <pre><code>// POST api/values
  public string Post([FromBody] string value)
  {
      string returnValue = "Return: " + value ;
      return returnValue;
  }
  </code></pre>
  
  <p>When i'm posting the following message with fiddler the method parameter keep returning null.</p>
  
  <pre><code>POST http://localhost:50814/api/Values/ HTTP/1.1
  Host: localhost:50814
  Content-Type: application/json
  Content-Length: 14
  
  {value: "New"}
  </code></pre>
  
  <p>I have simplyfied my code already as much as i can but still it stays null. </p>
  
  <p>I think I'm overlooking something very simple but i'm out of ideas. Could someone please help me?</p>
  
  <p>Thanks Sander</p>