Tabs and history "back" button
Inginious tabs do not play nicely with the browser history. It is very annoying in the "View submissions" view, with the two tabs "Individual results" and "Team results". If you switch to team results, then scroll (a long way) to team, say, 276 and look at their submissions in detail, then going back to the list of submissions brings you back down to the same position in the page (a long way to the bottom), but with the "Individual results" tab selected.
To get back to the "Team results", you need to go to the top of the page, select the other tab, and then scroll again to find the next group.
Could there be a way to remember the open tab in the history, or create a distinct history entry on tab switch ? See https://mnarayan01.github.io/bootstrap-tab-history/, http://www.redotheweb.com/2012/05/17/enable-back-button-handling-with-twitter-bootstrap-tabs-plugin.html and https://github.com/twbs/bootstrap/pull/581#issuecomment-2657772.