I am currently working on chase payment gateway integration with php. It has very bad documentation which does not shows how to use response functions on merchant parent page. I am using hosted payment form (HPF) in chase payementech. On the merchant parent page, i have response functions and iframe which contains hosted payment form. Here i don't know how to use response functions like
creHandleDetailErrors(errorCode, gatewayCode, gatewayMessage)
Is this resolved? If not, What do you have in your callback_url? chase paymenttech website documentation section provides a sample callback.html file which has the actual implementation for these methods. You can override those in your iFrame html page.