Google Plus Interactive Posts

[Panthro]

Interactive posts provide an easy and prominent way to allow users to share your site or app with their connections and invite them to take action, for example RSVP for an event. Interactive posts can drive new users to your site, improve conversions, and increase engagement.

[developers.google.com ]


I've been trying for the past couple hours to get this to work, but I keep getting errors - "invalid_client no registered origin". Anyone get this to work yet?