IdentServer4 Client 非SSL出现错误的解决办

如果IdentServer4的Client是非SSL网站，如果使用Edge等浏览器会出现错误。这里给出解决办法。首先创建一个扩展：

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;

namespace Microsoft.Extensions.DependencyInjection
{
    public static class SameSiteCookiesServiceCollectionExtensions
    {
        public static IServiceCollection AddSameSiteCookiePolicy(this IServiceCollection services)
        {
            services.Configure<CookiePolicyOptions>(options =>
            {
                options.MinimumSameSitePolicy = SameSiteMode.Unspecified;
                options.OnAppendCookie = cookieContext =>
                    CheckSameSite(cookieContext.Context, cookieContext.CookieOptions);
                options.OnDeleteCookie = cookieContext =>
                    CheckSameSite(cookieContext.Context, cookieContext.CookieOptions);
            });

            return services;
        }

        private static void CheckSameSite(HttpContext httpContext, CookieOptions options)
        {
            if (options.SameSite == SameSiteMode.None)
            {
                if (!httpContext.Request.IsHttps)
                {
                    options.SameSite = SameSiteMode.Unspecified;
                }
            }
        }
    }
}

然后，在ConfigureServices中增加这个扩展：

services.AddSameSiteCookiePolicy();

最后，在Configure中使用这个扩展：

            app.UseAuthentication();
            app.UseCookiePolicy();
            app.UseAuthorization();

注意， app.UseCookiePolicy();一定要在 app.UseAuthorization();的前面，否则不起作用。，