Why is the Facebook SDK for iOS throwing the "FBErrorCategoryUserCancelled" error when the user has not canceled?

Question

There was a similar question to this one posted not so long ago but it appears that the Apple Review team had messed up in that case. I have the same problem myself in that when clicking the "Log in with Facebook" button nothing happens, and since adding the error handling code taken from Facebook developer section the console is logging user cancelled login if when someone who has the Facebook app on their phone already tries log in via my app.

If they have not got the Facebook app on their phone is uses Safari by default, and works perfectly.

Does anybody know why this might be the case? And if so a fix to allow it to work correctly.

Answer 1

This seems to be an issue when using Facebook iOS SDK 3.13.1. I upgraded to Facebook iOS SDK 3.14.1 and this problem went away.