Our website is passing customer payments on to PayPal just fine. However, when a customer has made their payment and PayPal shows them the AutoRedirect page one of two things can happen:
1. If the customer waits for a few seconds to let the AutoRedirect work they are redirected back to your Ubercart site and the order update/stock levels are reduced appropriately.
2. However, we've noticed that if the customer gets impatient and clicks on the link on the PayPal page that says 'If you are not redirected after 5 seconds click here' this action will then send the purchase information to our Ubercart site twice.
We cannot work out how to get around this.
PayPal have asked if we can add IPN details but as Ubercart doesn't require these we're not sure what to do.
Any help would be greatly appreciated.