I’m having the exact same issue. It was working before but now when someone clicks on “accept offer” on the upsell page, nothing happens. The ‘loading’ popup appears but then after 10 sec that disappears as well and the page does not redirect to the thankyou page or anything. Just stays on the upsell page.
If I click on “refuse upsell” then it works and the page redirected to the thank you page where the upsell is not included in the totals ofc. Please let me know how to fix this