diff --git a/horizon/static/horizon/js/horizon.accordion_nav.js b/horizon/static/horizon/js/horizon.accordion_nav.js
index d4c8c0c258..75cfc0345f 100644
--- a/horizon/static/horizon/js/horizon.accordion_nav.js
+++ b/horizon/static/horizon/js/horizon.accordion_nav.js
@@ -1,5 +1,9 @@
 horizon.addInitFunction(function() {
   var allPanelGroupBodies = $('.nav_accordion > dd > div > ul');
+  // In case the event was generated by clicking any mouse button,
+  // the normalized codes are matched according to http://api.jquery.com/event.which/
+  var MOUSE_LBUTTON_CODE_NORMALIZED = 1;
+  var MOUSE_WHEEL_CODE_NORMALIZED = 2;
 
   // mark the active panel group
   var activePanel = $('.nav_accordion > dd > div > ul > li > a.active');
@@ -76,8 +80,14 @@ horizon.addInitFunction(function() {
   });
 
   // panel selection
-  $('.nav_accordion > dd > div > ul > li > a').click(function() {
-    horizon.modals.modal_spinner(gettext("Loading"));
+  $('.nav_accordion > dd > div > ul > li > a').click(function(ev) {
+    // NOTE(tsufiev): prevent infinite 'Loading' spinner when opening link
+    // in the other browser tab with mouse wheel or mouse lbutton + modifier
+    if ( ev.which !== MOUSE_WHEEL_CODE_NORMALIZED &&
+      !( ev.which === MOUSE_LBUTTON_CODE_NORMALIZED &&
+            ( ev.shiftKey || ev.ctrlKey ) ) ) {
+      horizon.modals.modal_spinner(gettext("Loading"));
+    }
   });
 
 });