Web Traffic Debugging with Fiddler

Web Traffic Debugging with Fiddler

Step 1

Download Fiddler from http://www.fiddlertool.com

Step 2

Configure Fiddler to work with Visual Studio Development Server.

• Set your Web Project to use a Fixed Port like 10000 (Under VS - Project – Properties – Web)
• Start Fiddler and aktivate to Capture the Traffic (Under Fiddler – File – Capture Traffic)
• Insert the following script in function OnBeforeRequest in the Fiddler Custom Rules (Under Fiddler – Rules – Customize Rules)

  if (oSession.host=="name:10000"){
   oSession.host="127.0.0.1:10000";
  }

• Start the debugging session in your VS. Change the Browsers address line from
  • localhost:10000 to
  • name:10000
• From now on Fiddler is showing you all traffic
• Click in Fiddler on View – Inspector and use the Tabs of the inspector to see the complete traffic.

Here you see also detailed Error Messages if a Service you called from Silverlight is failing…

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