GRAVITY FORMS REDIRECT NOT WORKING AFTER FORM SUBMIT ON POPUP PRO

My Gravity Form works great and it shows fine in the popup, but when I try to redirect the user to a URL on form submit, it just closes the popup and doesn't redirect the user anywhere.

I have the form submit option correctly set to "Redirect to form target URL," which should theoretically redirect the user to a specific URL (since that is what is in the Gravity Form Confirmation setting).

I am using the Page Footer method but I don't think the script method would change anything here.

Thanks!

Luke