AspNet Core Identity, how set options.Cookie.SameSite?

Question

In the latest templates and libraries used httpsonly flag. How can I turn it off?

This same question is outdated and it did not have full configuration sample:

Answer 1

For my case in asp.net core 3.1 two things in combination did the trick

services.ConfigureApplicationCookie(options =>
        {
            options.Cookie.SameSite = SameSiteMode.Unspecified;
        });

        services.AddAntiforgery(opts => {
            opts.Cookie.SameSite = SameSiteMode.Unspecified;
        });