microsoft-identity-web: AccountController implementing MicrosoftIdentity/Account/xxx endpoints does not honour redirectUrl

Which version of Microsoft Identity Web are you using? Note that to get help, you need to run the latest version. Microsoft Identity Web 1.2.0

Where is the issue?

• Web app
  • Sign-in users
  • Sign-in users and call web APIs
• Web API
  • Protected web APIs (validating tokens)
  • Protected web APIs (validating scopes)
  • Protected web APIs call downstream web APIs
• Token cache serialization
  • In-memory caches
  • Session caches
  • Distributed caches
• Other (please describe)

Is this a new or an existing app? This is an app in development

Repro

<a href="MicrosoftIdentity/Account/SignIn?redirectUrl=yyy">Sign In</a>

Expected behavior Clicking on the link should take me to the page at yyy

Actual behavior Takes me to the route of the application, /

Possible solution Set the redirectUrl property of AuthenticationProperties to the incoming query value

[HttpGet("{scheme?}/{redirectUrl?}")]
        public IActionResult SignIn([FromRoute] string scheme, [FromQuery] string redirectUrl)
        {
            scheme ??= OpenIdConnectDefaults.AuthenticationScheme;
            // var redirectUrl = Url.Content("~/");
            return Challenge(
                new AuthenticationProperties { RedirectUrl = redirectUrl ?? Url.Content("~/") },
                scheme);
        }

All endpoints should honour redirectUrl

Additional context / logs / screenshots

This will allow clients to use MicrosoftIdentity/Account/xxx endpoints and land the user on desired page.