AngularJs -.net MVC WebApi身份验证示例

I have a .Net MVC WebApi app and trying to write the front end exclusively in Angularjs. I am able to get data via json and manipulate it but I now need to secure the data and have added Base64 authentication into the headers on the server. When I browse to some of my .net view test pages, I get the appropriate login box asking for user/pass so I can continue to get the json.I have a .Net MVC WebApi app and trying to writ