export of image added for unselected part of map

frontend-js/src/main/js/minerva.js

@@ -131,10 +131,12 @@ function create(params) {
     customMap : result
   });
   
-  result.setContextMenu(new MapContextMenu({
+  var mapContextMenu = new MapContextMenu({
     element : document.getElementById("contextMenu"),
     customMap : result
-  }));
+  });
+  result.setContextMenu(mapContextMenu);
+  
   var selectionContextMenu = new SelectionContextMenu({
     element : document.getElementById("selectionContextMenu"),
     customMap : result
@@ -153,6 +155,8 @@ function create(params) {
       return topMenu.init();
     }).then(function(){
       return selectionContextMenu.init();
+    }).then(function(){
+      return mapContextMenu.init();
     }).then(function(){
       if (GuiConnector.getParams["layout"] !== undefined) {
         var layouts = params.project.getModel().getLayouts();