One-Page Checkout [Support Thread]

[BillJ]

Not sure how OPC works, but does it automatically handle the redirect from payment plugins to FILENAME_CHECKOUT_PAYMENT? For example, our Braintree plugin does contain such redirects.

OPC catches the NOTIFY_HEADER_START_CHECKOUT_PAYMENT notification from FILENAME_CHECKOUT_PAYMENT ('checkout_payment') and redirects to FILENAME_CHECKOUT_ONE ('checkout_one').