Scripts at checkout causes customer to be redirected to "authenticate" endpoint

[hadar-romash]

Hi, my app is experiencing a strange behavior at checkout.

Normally when customers complete their order at the checkout, they get redirected to the checkout's "thank_you" page.

We have a particular script that runs inside the checkout.liquid. When this script is present in a particular store, when customers complete their order, they are redirected to an "authenticate" page that then redirects them to the order summary page.

 

 

What can cause this unexpected redirect to the "authenticate" page?

A bit more about our script: Our app is a Loyalty app. One of its main flows is to allow customers to redeem their loyalty points to a discount during checkout. For that, our script runs inside checkout.liquid and shows a user interface that shows to the customer the point balance, and allows a button click that inserts a discount code to the discounts input and clicks on the "Apply" button.

Thanks,

Hadar