Access-Control-Allow-Origin Header in ASP.NET Core Web API

Add Setting in Startup Class.


 public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddMvc();
            services.AddCors();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            app.UseCors(builder =>
            {
                builder.AllowAnyHeader()
                       .AllowAnyOrigin()
                       .AllowAnyMethod();
            });
            app.UseMvc();
        }
    }