openid_options = { :name => "openid", :store => openid_store }
google_options = { :name => "google", :scope => "email", :access_type => "online" }
-facebook_options = { :name => "facebook", :scope => "email" }
+facebook_options = { :name => "facebook", :scope => "email", :client_options => { :site => "https://graph.facebook.com/v4.0", :authorize_url => "https://www.facebook.com/v4.0/dialog/oauth" } }
windowslive_options = { :name => "windowslive", :scope => "wl.signin,wl.emails" }
github_options = { :name => "github", :scope => "user:email" }
wikipedia_options = { :name => "wikipedia", :client_options => { :site => "https://meta.wikimedia.org" } }