When we enable "Use lite interface" option for a payment method iframe area is blank on checkout page.
it generates the following error:
PHP Notice: Undefined index: xpc_action in /httpdocs/payment/cc_xpc_iframe.php on line 48, referer:
https://*IP*/cart.php?mode=checkout
Any ideas what can be wrong?
Can it be related to ssl certificate? We are testing the store using IP address.