My rewrite only works with Fiddler running

[Yoni]

Here is my layout to start.

 

I am trying to get www.mysite.com/blog/ to rewrite to blog.mysite.com.

Both of them are separate IIS Websites on the same server.

 

I discovered that the way to do it was ARR.

 

I have set it all up and it works, but here is the problem.

It only works when I set the Proxy Chain to localhost:8888 and fiddler is running.

But otherwise, it does not work.

I don't want to leave Fiddler running all the time.

 

What can I do?