ASP.NET Microsoft MFA prompt failed outside IIS server

Question

Hi Guys,

I'm using the below codes for a microsoft MFA prompt for user logins.

            var pca = PublicClientApplicationBuilder.Create(clientId)

                .WithAuthority(new Uri(authority))

                .WithRedirectUri(redirectUri)

                .Build();

            var result = await pca.AcquireTokenInteractive(scopes)

                .WithPrompt(Prompt.ForceLogin)

                .ExecuteAsync();


I hosted this application in my windows server, while running this code in my windows server, the MFA successfully prompted by IIS ( which I can tell from the icon).

After publishing with IIS, accessing the same page with browser on other user's pc failed to get the prompt (The page just flick and nothing happened).

I'm unable to debug it as there's no error message.

Appreciate if someone can give me some heads up on it.

Thanks in adv.