URL: https://www.rockport.ca/checkouts

Browser / Version: Firefox 117.0
Operating System: Windows 10
Tested Another Browser: Yes Chrome

Problem type: Site is not usable
Description: Buttons or links not working
Steps to Reproduce:
Upon completing the billing information form and clicking the continue button, nothing happens. There are some CORS and SameSite errors and warnings shown in the Firefox browser console when clicking the button:

Some cookies are misusing the recommended “SameSite“ attribute 2
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://monorail-edge.shopifysvc.com/unstable/produce_batch. (Reason: CORS request did not succeed). Status code: (null).

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://monorail-edge.shopifysvc.com/unstable/produce_batch. (Reason: CORS request did not succeed). Status code: (null).

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://monorail-edge.shopifysvc.com/unstable/produce_batch. (Reason: CORS request did not succeed). Status code: (null).

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://monorail-edge.shopifysvc.com/unstable/produce_batch. (Reason: CORS request did not succeed). Status code: (null).

I did not check if these same errors are present when I tested with Chrome 116, but I was able to proceed with it, whereas I could not with Firefox

From webcompat.com with ❤️