DLUX navigation column disappears after clicking then hitting refresh on browser

The method used to poll the API's and detect which nav menu items should be displayed is breaking the deep-link routing behavior of AngularJS. This means that if you don't happen to be on the topology page, then linking to the URL will cause the nav menu items to vanish. This happens if you follow a bookmark to a non-topology page or if you hit the browser refresh button on a non-topology page.