Facebook Login OAuth

I have followed all of the posts I have seen for configuring FB oauth - and using the integrated fb button login. I keep getting this from facebook:

Can’t Load URL: The domain of this URL isn’t included in the app’s domains. To be able to load this URL, add all domains and subdomains of your app to the App Domains field in your app settings.

Is there an updated version?

This is what my fb page url says:


What gets sent to facebook? For the Return URI?