Fix Viewer opening bugs in OHIF Viewer (OHIF-49)

Packages/worklist/client/components/worklist.js

@@ -19,7 +19,6 @@ WorklistTabs._debugName = 'WorklistTabs';
 WorklistStudies = new Meteor.Collection(null);
 WorklistStudies._debugName = 'WorklistStudies';
 
-
 Session.setDefault('activeContentId', 'worklistTab');
 
 Template.worklist.onRendered(() => {
@@ -32,7 +31,7 @@ Template.worklist.onRendered(() => {
         // switch to that now.
         console.log('worklist onRendered');
         const contentId = Session.get('activeContentId');
-        if (contentId !== 'worklistTab') {
+        if (contentId !== 'worklistTab' && ViewerData && ViewerData[contentId]) {
             switchToTab(contentId);
         }
     }
@@ -40,16 +39,6 @@ Template.worklist.onRendered(() => {
     Meteor.subscribe('hangingprotocols');
 });
 
-Template.worklist.helpers({
-    /**
-     * Returns the current set of Worklist Tabs
-     * @returns Meteor.Collection The current state of the WorklistTabs Collection
-     */
-    worklistTabs() {
-        return WorklistTabs.find();
-    }
-});
-
 Template.worklist.events({
     'click #tablist a[data-toggle="tab"]': function(e) {
         // If this tab is already active, do nothing