CAS Authentication Filter AngularJS

I am looking to implement CAS server for SSO for my angularJS front end application and Rest Backend application. I have configured the CAS 4.0 web app and the management webapp and they are working properly. The part I am confused about is how Angularjs and the UI- router should interact with the CAS authentication filter?? I am using the CAS login page for authentication and am not able to figure out how this would work. I have looked for any documentation on this and was not able to find any solution.

Could anyone provide any direction??