PayPal checkout cancels transaction after entering login details
after signing in to PayPal... clicking the "continue" paypal button has the browser cancelling out of PayPal and returning to an empty shopping cart at the website.
hitting the "back" button on the web browser brings the customer back to the PayPal page to verify payment with the continue button.
and thus starts the loop
doesn't happen on all items. but this is the second instance this week.
item is Pysanky Egg Dying Workshop
at http://erieartmuseum.org/education/spring.php