Checkout does not continue past confirm.php
I had a cart working (or maybe it was almost working) with authorize.net. I went to test it today and realized that it does not proceed to the final pages (checkout_success.php or checkout_failure.php)
Everything else seems to be working: the confirmation email is received from both eCart and authorize.net, and the order and order details entries are posted correctly.
So it seems that everything is working except that it's not proceeding to the checkout_confirm.php page.
Can you please look at the code and let me know what's wrong with it?
I'm attaching a zip file with (I hope) everything we need.