[TIMOB-14205] iOS: Facebook Login Callback Not Working

var win = Ti.UI.createWindow({
    backgroundColor : "#FFF"
});
 
var fb = require('facebook');
fb.appid = FACEBOOK_APP_ID; // appid goes here
 
fb.addEventListener('login', facebook_connect);
 
function facebook_connect(e) {
    // Never called
}
 
win.add(fb.createLoginButton({
    top : 50,
    style : fb.BUTTON_STYLE_WIDE
}));
win.open();