[mcanitano]

I too am having this problem with the iframe area being blank on the checkout page.

I previously had it working, but when switching between a different payment method back to X-Payments method, the iframe would refresh and load the parent page (my website) inside of it, thus causing a loop because it would load the same page inside of it, with the same iframe, over and over.

Now I can not even simply get the iframe to appear.

I attached a picture of mine as well.