promise reject is reported to the user

frontend-js/src/main/js/gui/leftPanel/AbstractDbPanel.js

@@ -37,7 +37,7 @@ AbstractPanel.prototype._createEventHandlers = function() {
   searchButton.onclick = searchByQuery;
   searchInput.onkeypress = function(event) {
     if (event.keyCode === 13) {
-      searchByQuery();
+      return searchByQuery().then(null, GuiConnector.alert);
     }
   };