I'm using the last omniauth gem, and the omniauth-foursquare gem gem 'omniauth-foursquare'
.
When I try to login via foursquare, the callback returns:
#<OmniAuth::AuthHash ... provider="foursquare" redirect_uri="blabla" uid=nil>
uid is nil :(
I'm also using omniauth-contrib
for twitter, and omniauth-facebook
for... facebook. These work fine, I get a valid uid.
Do you think it's the gem? Any idea what could be wrong?