ASP.NET / Web.config: customErrors redirect only on a 404

Question

I have this scenario:

A user comes to my site and follows a link, which doesn\'t exists anymore, he should be redirected to a custom errorpage. (that works)

If a u

Answer 1

Ray Van Halens Answer is correct, but this was not the actual problem.

The reason for not showing stacktrace is a bug in mono itself. There is no other way then write an own error page where the stacktrace is dispayed.