StartUp.cs 中設定（加上最後一行程式碼）：

        public void ConfigureServices(IServiceCollection services)
        {
            services.Configure<CookiePolicyOptions>(options =>
            {
                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                //options.CheckConsentNeeded = context => true;
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });

            //Session 儲存到記憶體
            services.AddDistributedMemoryCache();
            services.AddSession();

            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
            services.AddMvc().AddJsonOptions(options => { options.SerializerSettings.ContractResolver = new DefaultContractResolver(); });
        }