Mock acquirer hosted payment page. It's reached via the orchestrator's redirect at /hosted/checkout?ref=<transactionId>.

Test card	Behaviour
4000 0000 0000 0002	3D-Secure enrolled, successful authorization
4242 4242 4242 4242	3D-Secure enrolled, declined authorization
4000 0000 0000 0408	Not enrolled for 3D-Secure, successful authorization
4000 0000 0000 0416	Not enrolled for 3D-Secure, declined authorization