The Facebook OAuth popup is throwing an error in Chrome on iOS only. Both developers.facebook.com and google have turned up nothing about this. Ideas?
This is how I did it (fixing iOS chrome specifically)
// fix iOS Chrome
if( navigator.userAgent.match('CriOS') )
window.open('https://www.facebook.com/dialog/oauth?client_id='+appID+'&redirect_uri='+ document.location.href +'&scope=email,public_profile', '', null);
else
FB.login(null, {scope: 'email,public_profile'});