HTTPSEverywhere breaks TripAdvisor.com
In order to use login or facebook connect buttons on TripAdvisor.com in Chrome, HTTPSEverywhere has to be disabled.
See others facing the same issue: http://www.tripadvisor.com/ShowTopic-g1-i12105-k7540056-Login_Homepage_Issues_On_Google_Chrome-TripAdvisor_Support.html#59004892