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2013-03-21

Fiddler tricks

Capture traffic from localhost:
  • Add a dot after “localhost”, so it becomes http://localhost.
    • This does not always work. On my Windows Server 2008 R2 box, it does not.
  • Access your web using the (netbios) machine name.
  • Access your web through the fiddler proxy: http://ipv4.fiddler/AppName
  • Run your web’s application pool under the same account that fiddler is running under, ie. the account you are logged on as.
    • NB! This also has the MAJOR benefit that you will see web service calls from your website.
    • IIS Express by default runs as the logged on user, so Fiddler will capture traffic.
Source:
http://weblogs.asp.net/lorenh/archive/2008/01/10/tip-for-using-fiddler-on-localhost.aspx