How to call showPaymentSubscription in HTML5 game?

Question

Classmates

When trying to call

FAPI.invokeUIMethod('showPaymentSubscription', item, price)

in html5 version of the game gives an error

{error_code:-1,error_message:"UI methods are available only for apps running on OK portal"}

.
Is there a proper way to call the subscribe window from html5? Or maybe some api initialization features to make the method work.

Answer 1

I'll duplicate the answer with api-support for the sake of history: at the moment there is no such possibility in HTML5 games (HTML (Mobile) platform). Adding this feature is in our plans, but not in the near future.