--- a/cuffs-hulotte-popup.user.js	Thu Jul 27 21:25:33 2017 +0900
+++ b/cuffs-hulotte-popup.user.js	Thu Aug 24 04:11:29 2017 +0900
@@ -1,7 +1,7 @@
 // ==UserScript==
 // @name         Cuffs/Hulotte tuning
 // @namespace    https://myconan.net
-// @version      1.0.7
+// @version      1.0.8
 // @description  Strip out Cuffs/Hulotte age confirmation popup, disables lightbox
 // @author       nanaya
 // @match        http://www.cuffs.co.jp/*
@@ -15,14 +15,23 @@
     "use strict";
 
     var $ = jQuery;
+    var rules = '';
+
+    if (document.querySelector('#load_bg') != null) {
+        rules += ' #load_bg { display: none !important; } ';
+    }
 
     if (document.querySelector('body > #mainContent') != null) {
+        rules += ' body > :not(#mainContent) { display: none !important; } ';
+    }
+
+    if (rules !== '') {
         var styleEl = document.createElement('style');
         document.head.appendChild(styleEl);
         var styleSheet = styleEl.sheet;
 
         styleSheet.insertRule(
-            'body > :not(#mainContent) { display: none !important; }',
+            rules,
             styleSheet.cssRules.length
         );
     }