Bought your add-on just today for the Battle.net Authentication and it doesn't work, same Log in error as others.
On my first attempt I received the issue about the wrong URL assigned to the Register Callback URL into
http://dev.battle.net, then changed to the correct one that is
http://forum.kemat1an.it/register/battlenet and the issue about the wrong URL gone, but came the one that says: "Unexpected error during the connection with Battlenet. Retry later."
Note: Just to make the things clear, I completely deleted and re-created new API client and ID keys in order to register properly the Callback URL into the application then re-typed the new values into XenForo.
Also, I checked the server time and it's in sync.
So, after a lot attempts, I integrated another provider: Twitch, and you know what?
That it works just fine.
So, in short, what I can/need to do in order to let Battle.net OAuth works properly on my site?
Thank you in advance.
Best regards and Happy New Year,
Angelo