(From GDrive document 7.5 point 7). After submitting the registrationform, registration_pay.php sends the user to the payment screen (Mollie). Because this can sometimes take a while, show a spinner while preparing/loading the payment screen.
There is a .spinner div already in registration_pay.php, with corresponding css rule in style.css. Please check if this already works or should be replaced or improved.
(From GDrive document 7.5 point 7). After submitting the registrationform, registration_pay.php sends the user to the payment screen (Mollie). Because this can sometimes take a while, show a spinner while preparing/loading the payment screen.