Bambora Payform - Session expired after some payments instead of checkout_success

[lat9]

Now tried the second code, but it got worst. It started to log me out of my account every time after payment.
Before I could't catch this in Safari, but with second code same problem started on Safari too - logged out after every payment.
Changed back to first variant - works on Safari again. At least did not log me out after several attempts.

Try using the second variant, but also create a file named /includes/extra_datafiles/set_samesite_cookie.php containing:

<?php
define('COOKIE_SAMESITE', 'none');

That will enable you to use the updated version (which will be applied on a zc157a upgrade) and keep the Samesite=None setting.