问题
I'm using 'HttpClient' in a Windows Metro style app and want to see the traffic using Fiddler. However, when Fiddler is active I get an exception that the app can't connect to the server. What's the problem?
回答1:
The answer is in this article: "Fiddler and Windows 8 Metro-style applications".
Turns out that "connecting to Fiddler requires an Application Capability or Loopback Exemption".
来源：https://stackoverflow.com/questions/7619419/how-to-debug-http-traffic-of-a-windows-8-metro-style-apps-using-fiddler