How to pass session to iframe?

Question

Node.js

Hey!
I describe what the problem is.
We get by third party the URL page - it is a 3d sucure payment confirmation page.
As expected, without sessions and cookies, this page will be empty.

Task: Display a page on our site for the user, already with cookies installed, in an Iframe.
That is, allow the user to complete the payment without going to the confirmation page, but do it in an iframe.
PS Any other solution is welcome.
PPs. Consultations paid on this issue are welcome in the voice. Write

Answer 1

do you have to do it in an iframe? Maybe just open a new page when you click "pay". this will save the tab with your site. I just googled it, looked it up, some - robokassa just forbids working with iframes for security reasons, and so on
. Yes, and where to get sessions and cookies -. if you only get url address

Answer 2

nothing
for this, everything is conceived and works, what are you trying to get around