Session.setDefault('ViewerData', {}); // Re-add any tab data saved in the Session Object.keys(ViewerData).forEach(function(contentId) { var tabData = ViewerData[contentId]; var data = { title: tabData.title, contentid: tabData.contentid }; WorklistTabs.insert(data); }); Router.configure({ layoutTemplate: 'layout', loadingTemplate: 'layout', notFoundTemplate: 'notFound' }); Router.onBeforeAction('loading'); Router.route('/', function() { this.render('worklist'); }); Router.route('/viewer/:_id', { layoutTemplate: 'layout', name: 'viewer', onBeforeAction: function() { var studyInstanceUid = this.params._id; // Check if this study is already loaded in a tab // If it is, stop here so we don't keep adding tabs on hot-code reloads var tab = WorklistTabs.find({ studyInstanceUid: studyInstanceUid }).fetch(); if (tab) { return; } this.render('worklist'); openNewTab(studyInstanceUid); } });