[TIMOB-23904] iOS10: Button listener takes two taps before responding for Facebook login

Description:

While testing a fix for TIMOB-23890, I noticed that the button for login required two presses before I was presented with the Facebook login. Sample code is here:

var fb = require("facebook");
 
// Facebook Stuff
fb.initialize();
 
 
var win = Ti.UI.createWindow();
 
var fbloginbutton = Ti.UI.createButton({
    title: "Login with Facebook"
});
 
fbloginbutton.addEventListener("click", function() {
    fb.authorize();
});
 
win.add(fbloginbutton);
 
var lbl = Ti.UI.createLabel({
    color: "red",
    text: fb.loggedIn
});

win.open();

Steps to reproduce:

1) Create a new classic mobile project 2) Attach the Facebook module 3) Paste the sample code into app.js 4) Install and launch 5) Press the "Login with Facebook" button

Result:

Nothing happens - Until you press the button again.

Expected Result:

The Facebook login process begins