Applications for Odnoklassniki, is it allowed to use only https?

Question

API

Hello!
Everyone who has an application is OK, do you really need to use HTTPS for the URL in the callback?
Thank you.

Answer 1

No, http works fine.

Answer 2

No, only a recommendation is indicated to use for the callback on https.
There is currently no requirement to transfer the callback to https (but after some time it may well follow), so as part of the usual transition to https, it is better to transfer the callbacks in advance at the same time.