Startup_ConfigureServices.cs

        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 => false;  // <---------------
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });
            services.AddAntiforgery(o => o.SuppressXFrameOptionsHeader = true);
            services.AddDistributedMemoryCache();
            services.AddSession();
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
        }