In the assessment tool each test attempt creates a QTI results reporting file. This is rendered using XSLT. The generated HTML is displayed in a modal dialog.
The problem with this behavior is that it must be possible to print out a specific test result of a user, however, modal dialogs can not be printed due to the visible background which can not be hidden in the print CSS. The foreground and background is merged together resulting in a big mess.
A solution could be to use a back-controller as in the previous steps of the assessment tool. This will also make it more accessible for mobile devices and follows the design patterns we use now with the bread crumb (even when it is not yet a bread crumb here).