RedirectTo domain limitation

There is the RedirectTo url parameter for the Login/Logout links to work in session-based authentication. It can be disabled by a Notes.ini parameter but that results in problems in authentication.

This parameter has been an issue for a couple of times in security assessments. The problem is that RedirectTo also accepts a full url. That’s a security breach for some cases. An attacker can exploit this and can create traffic to any web page with our server. 

We need to limit this parameter usage? For instance we should be able to tell HTTP that it should not create a redirection out of the server domain. So HTTP will not accept any redirection out of the server domain/subdomain.