Cannot connect to facebook (iOS only)

[LuizTokuhara]

I am using Oauth Facebook Login, it works great with Android, but I am getting errors in iOS.
I have captured the errors, don't know what is happening.
Does anyone had the same issue?

Regards,
Luiz

[4download]

I am suffering from the same issue. FB login works on Android but does not on iOS even after updating to IOS 11.4. I see the same errors around "Can't find variable: require" as well as the "X-Frame-Options' to DENY that are shown in Luiz's screenshot above.

One other observation is that if using Android the user has already accepted to share their email with my FB application, then subsequently if that user logs in using IOS, the error does not occur. This leads me to believe the Facebook intervening page where the User permits sharing of their email with my
FB app has the issue and the errors listed above.

Any help would be really really appreciated. I have spent a few days and many hours trying to resolve this situation without much success.