Client-side only user’s FaceBook email without typing

Facebook allows you to get a users email without the user of your web site having to type (assuming the user of you site has a FB account).
You will first have to create a FB app to get your own FB app id here:

Here is the full working example of no back end FB user’s email:

Notice the call:

Here is a full video:
Let me know if you have problems reproducing this at

Another training: Tuesday, September 10, 2013 at 6:00 PM – Wednesday, September 11, 2013 at 8:00 PM (PDT); San Francisco, CA

So we have another training on the UI (not our service):

More info here:

Also, we had re-designed our site and re-sharded the data on servers.