In-line payment using iframe

Hi,

This is a great plugin, thanks!

I’m setting up the plugin to take donations and would like to have the payment form in-line rather than as a pop-up – per the test page. I’ve tried two options (and would prefer the second):

1) Standard, button with pop-up payment window. All works fine, payment made, linked to confirmation page.

2) Inline using iframe. The payment goes through ok, approved by stripe gateway, but then a spinning circle appears and doesn’t transfer to the confirmation page – any idea why?

Is there any better way to have the payment form in-line?

Cheers,
Mark

The page I need help with: [log in to see the link]