ASP.NET 5 beta 8中的Windows身份验证支持

I have an ASP.NET 5 MVC 6 Web API project. Most of the API endpoints have the [Authorize] attribute, and Windows Authentication is enabled in both IIS and on the properties of the project in Visual Studio. This all works fine in beta 7.I have an ASP.NET 5 MVC 6 Web API project. Most