This is true. You'd have to look for a script tag with src of https://checkout.stripe.com/checkout.js https://checkout.stripe.com/checkout.js. Alternatively,

This is true. You'd have to look for a script tag with src of https://checkout.stripe.com/checkout.js https://checkout.stripe.com/checkout.js. Alternatively, you could try to follow the onclick handler for the button (Event Listeners in Chrome).