Facebook integration seems to work only for authentication

I'm trying to configure an authentication for Linkedin, Twitter and Facebook.
Not only authentication, I want to read the best set of data I can get from the remote social.

In my old experience with pas.plugings.velruse, Facebook was the most simple social network to integrate with Plone, but with this add-on I can only authenticate.

Twttitter and Linkedin are OK: after configuration I can get back lot of interesting data. Facebook only return's me the fullname and no email (althouht my Facebook app is configured to expose `public_profile` and `email`).


Have you ever tested a Facebook integration for read additional user's data?

Follow my configuration:

```
{
"facebook": {
"display": {
"title": "Facebook",
"cssclasses": {
"button": "btn btn-default",
"icon": "glypicon glyphicon-facebook"
},
"as_form": false
},
"propertymap": {
"email": "email",
"link": "home_page",
"location": "location",
"name": "fullname"
},
"scope": ["public_profile", "email"],
"class_": "authomatic.providers.oauth2.Facebook",
"short_name": 1,
"consumer_key": "xxx",
"consumer_secret": "xxx",
"access_headers": {
"User-Agent": "Plone (pas.plugins.authomatic)"
}
},

"twitter": {
"display": {
"title": "Twitter",
"cssclasses": {
"button": "btn btn-default",
"icon": "glypicon glyphicon-twitter"
},
"as_form": false
},
"propertymap": {
"name": "fullname",
"location": "location",
"url": "home_page",
"description": "description",
"portrait": "profile_image_url"

},
"class_": "authomatic.providers.oauth1.Twitter",
"consumer_key": "xxx",
"consumer_secret": "xxxx",
"access_headers": {
"User-Agent": "Plone (pas.plugins.authomatic)"
}
},

"linkedin": {
"display": {
"title": "Linkedin",
"cssclasses": {
"button": "btn btn-default",
"icon": "glypicon glyphicon-linkedin"
},
"as_form": false
},
"propertymap": {
"emailAddress": "email",
"location.name": "location",
"formattedName": "fullname",
"publicProfileUrl": "home_page"
},
"scope": ["r_basicprofile", "r_emailaddress"],
"class_": "authomatic.providers.oauth2.LinkedIn",
"consumer_key": "xxx",
"consumer_secret": "xxxx",
"access_headers": {
"User-Agent": "Plone (pas.plugins.authomatic)"
}
}

}
```