Open the IE browser and go to the product details page. Click on Add to cart button. It will add the product to the cart but gave an error at append method in js. Due to this loader will keep on loading as well no bar notification for success or failure message.
Hello, I am currently checking the issue on IE version 11.706.17134.0 You can check same issue on NopCommerce demo site. You can click on https://demo.nopcommerce.com/apple-macbook-pro-13-inch and then click on add to cart button. The same issue is for all products and not product specific.