diff --git a/main.default.js b/main.default.js
index a7b657b3b..d2ac6d07c 100644
--- a/main.default.js
+++ b/main.default.js
@@ -100,14 +100,16 @@
 			);
 		},
 		
-		// is IE8? for determine the jQuery version to use (optional)
-		ie8 = (typeof window.addEventListener === 'undefined' && typeof document.getElementsByClassName === 'undefined');
+		// is IE8 or :? for determine the jQuery version to use (optional)
+		old = (typeof window.addEventListener === 'undefined' && typeof document.getElementsByClassName === 'undefined')
+		       ||
+		      (!window.chrome && !document.unqueID && !window.opera && !window.sidebar && 'WebkitAppearance' in document.documentElement.style && document.body.style && typeof document.body.style.webkitFilter === 'undefined');
 
 	// config of RequireJS (REQUIRED)
 	require.config({
 		baseUrl : 'js',
 		paths : {
-			'jquery'   : '//cdnjs.cloudflare.com/ajax/libs/jquery/'+(ie8? '1.12.4' : jqver)+'/jquery.min',
+			'jquery'   : '//cdnjs.cloudflare.com/ajax/libs/jquery/'+(old? '1.12.4' : jqver)+'/jquery.min',
 			'jquery-ui': '//cdnjs.cloudflare.com/ajax/libs/jqueryui/'+uiver+'/jquery-ui.min',
 			'elfinder' : 'elfinder.min',
 			'encoding-japanese': '//cdn.rawgit.com/polygonplanet/encoding.js/1.0.26/encoding.min'