Trying to use Microsoft.Identity.Web solution to make an external provider connection in Asp.net Core application.

I’ve connected it, using next C# code:

services.AddAuthentication(OpenIdConnectDefaults.AuthenticationScheme).AddMicrosoftIdentityWebApp(Configuration.GetSection("AzureAd"));

It integrates ok, as External provider.

However, when I log in, using current provider, I got an exception

System.Exception: ‘An error was encountered while handling the remote login.’
InnerException.
Exception: Correlation failed.

As I researched, I found out that is it “Correlation cookie” problem (means the provider, won’t find cookie to “correlate” with”). As I checked,

Request.Cookie.Count == 0

but Browser sends .AspNetCore.Correlation and .AspNetCore.OpenIdConnect.Nonce cookies with “N” value.

Application’s cookie configuration setup are:

        services.ConfigureApplicationCookie(config =>
        {
            config.Cookie.SameSite = SameSiteMode.Strict;

           
        });
        services.ConfigureExternalCookie(options =>
        {
            options.Cookie.Name = "Identity.Application";
            options.Cookie.SameSite = SameSiteMode.Strict;
        });

…

        app.UseCookiePolicy(new CookiePolicyOptions()
        {
            MinimumSameSitePolicy = Microsoft.AspNetCore.Http.SameSiteMode.Lax,
            HttpOnly = HttpOnlyPolicy.None
        });

What’s wrong with setup? May be something’s wrong, or absent?

UPD: Cookie Setup added due to IdentityServer4 usage and customization. As I found out, Microsoft.Identity.Web adds own cookie scheme, not using Default one. So, correlation Cookie won’t pass, cause different cookie scheme used (Request.Cookies.Length = 0). So, those one remains in conflict. Nevertheless, this question should stays opened, may be there will be some update, that fixes this issue, or my conclusions are wrong.