inconsistency with the tabs in the shopping cart portlet

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.1.X EE, 6.2.X EE, 7.0.0 M3
• Fix Version/s: 7.0.0 M1
• Component/s: Util, Util > Shopping
• Labels: None
• Story Points: 4
• Fix Priority: 1
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/20154

Unable to navigate back or cancel an order in the shopping cart portlet without using the browser's back button

Steps to Reproduce
1. Go to Shopping Cart Portlet and add items to the catalog.
2. Add any item to the cart
3. notice that the tabs become invisible

actual result: the tabs are not displayed when looking at the cart
expected result: the UI should be consistent.

note: this is a usability issue, because there is no reason why we should be restricting the user from viewing the other tabs if they have the permissions.