Hi John and Yavor,

This now really was an instructive and informative video. Finally I get Fiddler to cooperate with my localhost and/or the development server on any desired port.

A a result of this I think I was able to find out why my service was not responding to requests. Fiddler says:

No Proxy-Authenticate Header is present

No WWW-Authenticate Header is present.

So far so good, but WTH do I do to get rid of that?