CorsConfig.cs

 services.AddCors(options =>
            {
                options.AddPolicy("ApiCorsPolicy",
                    builder => builder
                        .AllowAnyMethod()
                        .AllowAnyHeader()
                        .AllowCredentials()
                        .WithOrigins("http://localhost:5200")
                        .SetPreflightMaxAge(TimeSpan.FromHours(1)));
            });