I hope you may be able to help as I don't know how possible this is:
I've currently got an online form (within a secure members log in area) which on form submission, takes the user through to external secure payment facilities to update their account credits (The payment site being WorldPay).
At the moment the external payment site opens up in the same browser window, and therefore when the customer finishes making a payment, they've already been logged out of the members area (ie to stop others using the history list to find their way into the secure area).
However, having to log in again after making a payment, is a hassle I'd rather avoid for members in this situation.
The plan was thus to set the target="blank" to open up a new window for the secure payment in the 'form action' code (ie. <form action="https://select.worldpay.com/wcc/purchase" target="blank" method="post"> if this works!) But at the same time, also change the location of the original window to a new thank you page (ie redirect to /members/thank_you.html ).
So is this possible? And can it be done in such as way that the user only sees the updated original page after they close the WorldPay screen? (rather than going back to seeing the form they've already completed on closing the external payment window?)