I have a website where a redirect has been setup to use a frameset.
For example, my main website is
x-site.example. There is a redirect setup somewhere so that
xsite.example redirects to
x-site.example, but it does so by creating a frameset and placing
x-site.example within there.
This causes problems for users to login, and we do not need it to function in this fashion.
I tried writing some simple .Net code to redirect the user to
x-site.example, but it doesn't seem to work. This leads me to believe that there is something in IIS doing the redirect before the code can execute.
How do I remove the "frameset redirect"?
There is nothing in IIS that would do a frame redirect automatically.
xsite.example had to have been set up as website with a single HTML document or script that contains the frame.
The other possibility is that
xsite.example is not actually hosted by you at all, you are having your DNS provider or a hosting company do the frame redirect for you. It is very common for a registrar to do this, it is usually a checkbox when you register a domain.
x-site.example to get their IP addresses. If they match, then you are hosting it yourself and need to remove the website from your IIS configuration. If they are different IP addresses, then log into your DNS provider interface and choose a different redirection option or go to your domain name registrar to change the DNS servers to host it yourself.