Update - 23/03/2017 - Angular 2 and K5 CORS challenge resolved...by using a lightweight CORS PROXY Server
See the cors_proxy_service.js for the solution.
https://github.com/allthingsclowd/K5_Angular_2_Example_Login
This repo has been put together to demonstrate how to work-around the CORS authentication challenges when building an Angular 2 SPA (Single Page Application) for Fujitsu's K5 platform.