Not exactly. Iframes aren't involved (yuck how ugly!). Javascript is used to catch the form's submit, all the data on the form (credit card info) is sent straig

Not exactly. Iframes aren't involved (yuck how ugly!). Javascript is used to catch the form's submit, all the data on the form (credit card info) is sent straight to Stripe's server over https (via AJAX) and then their server sends back a response. Their implementation is both elegant and smart. Even easier than Braintree.