Issue when using IAppBuilder.UseWebApi
问题 I am creating a SPA (Singe Page Application) using WebApis in ASP .NET MVC5. For WebAPis I am using attribute routing. For requests other than Web API, I have configured a Catch-All route that maps to Home controller and Index action Here is my code I have the following configuration code in my StartUp.cs file using System.Web.Routing; [assembly: OwinStartup(typeof(MyApp.Startup))] namespace MyApp { public class Startup { public void Configuration(IAppBuilder app) { GlobalConfiguration