using System; using Microsoft.AspNet.Builder; using Microsoft.AspNet.Cors.Core; using Microsoft.AspNet.Http; using Microsoft.Framework.DependencyInjection; namespace UsePolicy { public class Startup { public void ConfigureServices(IServiceCollection services) { services.AddCors(); } public void Configure(IApplicationBuilder app) { app.UseCors(policy => policy.WithOrigins("http://example.com")); } } }