title: Why can't Fiddler see my web service traffic?
body: <p>I had a problem that Fiddler wasn't showing my web service calls made from my application (running locally). <a href="https://stackoverflow.com/questions/6581114/use-to-fiddler-trace-a-third-party-webservice-call-in-asp-net-mvc-action-method">I found</a> and <a href="http://fiddler2.com/documentation/Configure-Fiddler/Tasks/ConfigureFiddler" rel="noreferrer">solved</a> my problem.</p>
  
  <p>So my question is not how, but <em>why</em> does Fiddler not show web service traffic? I have a very limited understanding of how network traffic works so this might be quite simple/obvious. All I'm able to decipher is:</p>
  
  <ol>
  <li><p>I don't think it has anything to do with HTTPS, as I can see HTTPS requests in Fiddler (decoded if I want through Fiddler's settings).</p></li>
  <li><p>I copied a piece of code <code>new WebProxy("127.0.0.1", 8888);</code> in order to get it to work so it must have something to do with proxies?</p></li>
  </ol>
  
  <p>This is an ASP.NET application in case that makes a difference.</p>