I have tried setting up the Instagram login on this page:
However, the provided instruction is not valid anymore, it is not possible to create a separate Instagram app.
Instagram app submissions are now managed through general App Review. You can submit your request from the Current Request page under general App Review.
OAuth Redirect URIs and other fields
Could you please update the manual so it would be possible to follow it?
It wasn't available, but then Facebook suggested some change to the app which I made and it appeared, thank you
Does this authorization works only for the "Tester" accounts that I have to manually specify?
Is it possible to make Instagram login available for all the visitors?
Otherwise, what is the point of it?