Canceling payment redirects us to "Complete the payment" Page on smartphone payment such as LinePay

[Iorin0225]

Context

At smartphone payment methods such as Line Pay, a customer is redirected to their offsite page. At the offsite page, a customer can cancel to proceed with the payment.
After the cancelling, it should redirect a customer back to the selecting payment method page, but actually it shows the payment complete page.
That's why some customers can misunderstand that they succeed to complete the payment.

Expected Behavior

Cancelling payment should redirect us to selecting payment methods page.

Actual Behavior

Cancelling payment redirects us to complete payment page.

Possible Fix

Sorry but I'm not really sure how to fix.
But some other payment methods like credit_card already realizes this behaviour so smartphone payment methods are also possible to realize this behaviour 🙏

How to reprocude?

1. Select LinePay on selecting payment methods page
2. Proceed to LinePay offsite page
3. Scan QRcode by LINE app.
4. Cancel it
5. The web browser would be redirect to Complete Payment page