How to set up Robokassa on the website?

Question

ROBOKASSA

I connected Robokassa on my website. Everything works, but not as it should. I have a robocash script connected in a separate frame, which displays a field for entering the amount to be paid and the "Pay" button on the page. When you click on the "Pay" button, a new tab opens with the payment interface, but how can I make this interface open inside my site and not create other tabs in the browser?

Answer 1

is this possible at all? Is there something like a merchant there?