1477183 - The “Pay” button is not grayed out when a generic merchant error message is displayed

Status: VERIFIED FIXED

(Firefox :: WebPayments UI, defect, P1)

Description

[Timea Cernea [:tbabos][inactive]]

[Affected versions]:
Nightly 63.0a1

[Affected platforms]:
Windows 10 x64, Mac OS X 10.12, Ubuntu 18.04 x64

[Prerequisites]:
- set the pref dom.payments.request.enabled to "true"
- have a saved card with address in DE on your profile

[Steps to reproduce]:
1. Go to https://rsolomakhin.github.io/pr/us/ test page and click on “Buy”
2. Select the saved address from DE and check if the “Cannot ship outside of US” message appears

[Expected Result]:
The “Pay” button should be grayed out and should not allow the payment transaction for a DE address.

[Actual Result]:
The “Pay” button is not grayed out allowing the payment transaction with a DE address during in a  US- only shipping test

Comment 1

[Jared Wein [:jaws] (please needinfo? me)]

This was fixed by bug 1475521, which disables the Pay button if any of the Shipping Address, Shipping Option, Payment Method, or Payer Details are left empty.

In the case of a Shipping Option error, the merchant must provide an empty list of shipping options. Thus the Shipping Option field will be blank, and the Pay button will be disabled.

Comment 2

[Timea Cernea [:tbabos][inactive]]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0

Verified fixed on the latest Nightly version 63.0a1 (2018-07-30) on Windows 10, Mac 10.13, Ubuntu 16.04.
As mentioned in Comment 1, the issue was fixed with the fix for Bug 1475521. 
The "Pay" button is grayed out as expected if the generic merchant error is displayed.