I'm using JSBin for a code sample and the sample doesn't work properly. It appears it's the same limitation which Python SimpleHTTPServer shares...code works fine on NodeJS server as well as Google App Engine Dev server.
Help appreciated since can't even ask what's wrong with my code until I have a code bin on which I can replicate the issue...
@scott-miles was right re. using Plunker and mixing versions.
Redirect CORS issue can be dealt with by disabling web security on browser startup