Hi!
It seems the Facebook Login native behavior is different with iOS 11.0. (For Standalone app)
Before iOS 11.0:
It opens safari, propose you to connect with facebook app or the facebook account connected on safari mobile.
In iOS 11.0:
It opens safari and ask to enter the email and password. It’s the same behavior as the web behavior (which open a web view dialog) but on safari.
Can anyone confirm this? And find a possible fix?
Probably caused by this…
I’m using SDK 22 and standalone apps with Facebook login behavior set to ‘native’, it works fine on Android, but iOS still opens safari (like if i had ‘web’ behavior) and not the native app? Am i missing something or is this the intended behavior?
Any new updates on this topic?
Unfortunately, @arivest is quite right - third-party app support has been removed along with iOS 11 and native is used instead of system, also native sometimes still falls back to open Safari - see here: Page Not Found - Facebook for Developers
@quinlanj we also need this. Can you tell what is the state of this feature?
When I set “native” for behavior it works like “web”. I am on iOS 11.2.6
Can you make working behavior “native”?
I see that it is possible as I can login with Facebook app in “Wolt - Food delivery” application on my current iOS version.
@serhiipalash take a look at the code that is being called here: https://github.com/expo/expo/blob/9586ae5a18ae10f0d3481906a549fff1fab64505/ios/versioned-react-native/ABI26_0_0/Expo/Core/Api/ABI26_0_0EXFacebook.m#L52-L66
This talks a little bit more about sign in: ios - -canOpenURL: failed for URL: "fbauth2:/" (OSStatus error -10814.)" - Stack Overflow
Idk what voodoo Wolt is doing to keep this feature alive - but I would strongly recommend against using an older version of FBSDK as you could run into problems from apple and facebook 
