Valid OAuth Redirect URIs - what do I wrong

[BGBlab]

Hello I have a joomla app and I am not able to configure "Valid OAuth Redirect URIs" in Facebook for developers. The Facebook login button is on page https://estryszek.pl/pl/login-form

And the error I can see after clicking the button is:

https://www.facebook.com/dialog/oauth?response_type=code&client_id=1601795433497606&redirect_uri=https%3A%2F%2Festryszek.pl%2Findex.php%3Foption%3Dcom_ajax%26group%3Dsociallogin%26plugin%3Dfacebook%26format%3Draw&scope=public_profile%2Cemail

I tried with many different URIs with no success. What I should put there to make it working?

[nikosdion]

Please follow the Setup instructions. As you can see, you need to setup both the App domains (in your case estryszek.pl and www.estryszek.pl) and the Vaid OAuth Redirect URIs (in your case https://estryszek.pl/index.php?option=com_ajax&group=sociallogin&plugin=facebook&format=raw and https://www.estryszek.pl/index.php?option=com_ajax&group=sociallogin&plugin=facebook&format=raw).

Both App domains and Valid OAuth Redirect URIs must be set in Facebook. The App domains must also match the domains used in the Valid OAuth Redirect URIs. This is a double security check made by Facebook to ensure that no third party sites can spoof the Facebook login of your site, preventing entire classes of attacks against your users.

[BGBlab]

"The App domains must also match the domains used in the Valid OAuth Redirect URIs" - This is a part that made my mistake. Thank you so much!!!!

[nikosdion]

You're welcome!