From 3aab782e0f05e1f541defe5a00189b44efb808ef Mon Sep 17 00:00:00 2001
From: sudwebdesign <thomas@sudwebdesign.fr>
Date: Wed, 28 Sep 2016 22:38:17 +0200
Subject: [PATCH] fix toggle no work due an window.opener.document access
 denied

Prevent for continue to interpret javascript if stopping with
Error: Permission denied to access property "document"
Maybe rule browser "Same-origin policy" or unexisting object.

On course sidebar, toggle unwork & print "toggle" in place of +
for simply see this (js) error, go to login.php ;-)

this function is called in jscript/ATutor_js.php on line 381
ATutor.users.preferences.setStyles()
---
 jscripts/ATutor.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/jscripts/ATutor.js b/jscripts/ATutor.js
index a9699b479..c213a509d 100644
--- a/jscripts/ATutor.js
+++ b/jscripts/ATutor.js
@@ -579,7 +579,7 @@ ATutor.users.preferences = ATutor.users.preferences || {};
         
         jQuery('#pref_style').replaceWith(pref_style);
         if (window.opener) {
-            jQuery('#pref_style', window.opener.document).replaceWith(pref_style);
+            try {jQuery('#pref_style', window.opener.document).replaceWith(pref_style);}catch(err){}finally{}
         }
     };