Hi Shopify team,
I noticed that the cancel url sent in the payment request is now set to the processing page (example: https://{shopify.store}>/checkouts/cn/c1-1a6484103cf094b45b6a02031c0760ae/processing). This is causing infinite loop because it will redirect again to our hosted payment page.
Also, even when I updated the cart and proceed to checkout, the same processing page will be called again and will re-trigger the same payment.
I have attached screencast of the issue I faced.