docs: function(options) {
        if (typeof(FB) === 'undefined') {
          throw "The Facebook JavaScript SDK must be loaded before calling init.";
        } 
        initOptions = _.clone(options) || {};
        if (initOptions.status && typeof(console) !== "undefined") {
          var warn = console.warn || console.log || function() {};
          warn.call(console, "The 'status' flag passed into" +
            " FB.init, when set to true, can interfere with Parse Facebook" +
            " integration, so it has been suppressed. Please call" +
            " FB.getLoginStatus() explicitly if you require this behavior.");
        }
        initOptions.status = false;
        FB.init(initOptions);
        Parse.User._registerAuthenticationProvider(provider);
        initialized = true;
      }