Facebook OAuth “Unsupported” in Chrome on iOS

Question

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?

Answer 1

You can use the redirection method as follow for this case (by detecting the user agent being chrome ios):

https://www.facebook.com/dialog/oauth?client_id={app-id}&redirect_uri={redirect-uri}

See more info here https://developers.facebook.com/docs/facebook-login/login-flow-for-web-no-jssdk/

Remark: I personnaly use the server OAuth in that case but this should do the trick and is quite simple