Does WidgetInvite work for HTML5 games?

Question

JavaScript

In an HTML5 game, I'm trying to call a friend invite widget.
Methods:
1) friends.appInvite - visible only under Android/iOS
2) FAPI.UI.showInvite (JavaScript SDK) - UI methods are available only for apps running on OK portal
3) External JavaScript SDK
4) Invitation widget and game recommendations
3 and 4 ways to open a new tab with an instant redirect to the source or empty tabs if null is passed to return.
At the same time, all other methods of both SDKs (external and standard), for example, payment, work properly.
Question - do you have the Invite Friends API working at all? Maybe there is another way?

Answer 1

Odnoklassniki's answer:

Found a very rare bug that affected your application. The bug has been fixed, now the widget should work.