JIRA Service Desk should open Knowledgebase as a Pop-up Window

When using JIRA Service Desk with a Knowledgebase a pop-up window opens when a suggested article is selected by the user. That is good.

But, if this article contains a link to another confluence page and this link is clicked, Confluence opens and the customer leaves the Service Desk
environment. That's not good. Is it possible to display the new page in the pop-up window as well?