From d74d4f4aab09bea6299bfdf518aea6bbda2e3d8d Mon Sep 17 00:00:00 2001
From: Marina Glancy <marina@moodle.com>
Date: Wed, 22 Jun 2016 12:21:40 +0800
Subject: [PATCH] MDL-54953 mod_chat: remove Safari hack

This hack was introduced in MDL-16878 and is not needed in modern Safari versions
but it was reported that it can breaks chat in IE
---
 mod/chat/gui_header_js/jsupdate.php  | 8 --------
 mod/chat/gui_header_js/jsupdated.php | 8 --------
 2 files changed, 16 deletions(-)

diff --git a/mod/chat/gui_header_js/jsupdate.php b/mod/chat/gui_header_js/jsupdate.php
index 0d5ff638de0..f33af4a83db 100644
--- a/mod/chat/gui_header_js/jsupdate.php
+++ b/mod/chat/gui_header_js/jsupdate.php
@@ -116,14 +116,6 @@ ob_start();
         <meta http-equiv="content-type" content="text/html; charset=utf-8" />
         <script type="text/javascript">
         //<![CDATA[
-        function safari_refresh() {
-            self.location.href= '<?php echo $refreshurl;?>';
-        }
-        var issafari = false;
-        if (window.devicePixelRatio) {
-            issafari = true;
-            setTimeout('safari_refresh()', <?php echo $CFG->chat_refresh_room * 1000;?>);
-        }
         if (parent.msg && parent.msg.document.getElementById("msgStarted") == null) {
             parent.msg.document.close();
             parent.msg.document.open("text/html","replace");
diff --git a/mod/chat/gui_header_js/jsupdated.php b/mod/chat/gui_header_js/jsupdated.php
index 1ff6d763061..3af2347a9e2 100644
--- a/mod/chat/gui_header_js/jsupdated.php
+++ b/mod/chat/gui_header_js/jsupdated.php
@@ -106,14 +106,6 @@ $refreshurl = "{$CFG->wwwroot}/mod/chat/gui_header_js/jsupdated.php?".
         <meta http-equiv="content-type" content="text/html; charset=utf-8" />
         <script type="text/javascript">
         //<![CDATA[
-        function safari_refresh() {
-            self.location.href= '<?php echo $refreshurl;?>';
-        }
-        var issafari = false;
-        if(window.devicePixelRatio){
-            issafari = true;
-            setTimeout('safari_refresh()', <?php echo $CFG->chat_refresh_room * 1000;?>);
-        }
         if (parent.msg.document.getElementById("msgStarted") == null) {
             parent.msg.document.close();
             parent.msg.document.open("text/html","replace");