After uploading an image, users are unable to proceed to shopping cart to order canvas. The page just stalls and nothing is seen to be running. This issue does not surface when connecting through WSS Agent and only happen when IPsec tunnel to CloudSWG is formed.
A third party CDN, "jsf.cdn-shop.com" hosting the content for the shopping cart is responding with 403 causing the page to stall when SSL interception is turned on.
Disabling SSL interception for "jsf.cdn-shop.com" resolve the issue.