chromium based edge shows the secured web page of one of our Server 2019 IIS web site before the user has entered the account name and password. IE, Firefox, Edge and Chrome all force the user to successfully log in before showing the page. With Chromium based Edge rolling out to Windows 10 users on 1/16/2020 we would like to somehow fix this. I don't think it is safe to assume this will be resolved in the new Edge by 1/16. Is there some other piece in Server 2019 IIS we could activate to prevent this? As info chromium based edge works the same way with the same site on a Server 2008 IIS. The other browsers listed behave and force a successful log in before displaying the page.
Best to provide your actual login URL.
Better to test + know, than guess.