From dc8d9733ad7342aca161283e28e9ced94f64373d Mon Sep 17 00:00:00 2001
From: sam marshall <s.marshall@open.ac.uk>
Date: Fri, 16 Nov 2012 13:40:35 +0000
Subject: [PATCH] [OU-SPECIFIC] Backport YUI IE10 fix #5103

Bugfix #5096.

These should be included in Moodle 2.1. See MDL-66666.
---
 lib/yui/3.5.1/build/yui/yui-debug.js |   17 +++++++++++++++++
 lib/yui/3.5.1/build/yui/yui-min.js   |   16 +++++++++++++++-
 lib/yui/3.5.1/build/yui/yui.js       |   18 +++++++++++++++++-
 3 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/lib/yui/3.5.1/build/yui/yui-debug.js b/lib/yui/3.5.1/build/yui/yui-debug.js
index 7e4c31c..3db61b6 100644
--- a/lib/yui/3.5.1/build/yui/yui-debug.js
+++ b/lib/yui/3.5.1/build/yui/yui-debug.js
@@ -4805,8 +4805,25 @@ Transaction.prototype = {
         } else {
             // Script or CSS on everything else. Using DOM 0 events because that
             // evens the playing field with older IEs.
+// ou-specific begins #5103 (until Moodle 2.4)
+/*
             node.onerror = onError;
             node.onload  = onLoad;
+*/
+            if (ua.ie >= 10) {
+                // We currently need to introduce a timeout for IE10, since it
+                // calls onerror/onload synchronously for 304s - messing up existing
+                // program flow.
+
+                // Remove this block if the following bug gets fixed by GA
+                // https://connect.microsoft.com/IE/feedback/details/763871/dynamically-loaded-scripts-with-304s-responses-interrupt-the-currently-executing-js-thread-onload
+                node.onerror = function() { setTimeout(onError, 0); };
+                node.onload  = function() { setTimeout(onLoad, 0); };
+            } else {
+                node.onerror = onError;
+                node.onload  = onLoad;
+            }
+// ou-specific ends #5103 (until Moodle 2.4)
 
             // If this browser doesn't fire an event when CSS fails to load,
             // fail after a timeout to avoid blocking the transaction queue.
diff --git a/lib/yui/3.5.1/build/yui/yui-min.js b/lib/yui/3.5.1/build/yui/yui-min.js
index 452cbaa..fd6a32f 100644
--- a/lib/yui/3.5.1/build/yui/yui-min.js
+++ b/lib/yui/3.5.1/build/yui/yui-min.js
@@ -8,7 +8,21 @@ if(typeof YUI!="undefined"){YUI._YUI=YUI;}var YUI=function(){var c=0,f=this,b=ar
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diff --git a/lib/yui/3.5.1/build/yui/yui.js b/lib/yui/3.5.1/build/yui/yui.js
index 4d360cb..33bcc51 100644
--- a/lib/yui/3.5.1/build/yui/yui.js
+++ b/lib/yui/3.5.1/build/yui/yui.js
@@ -4775,9 +4775,25 @@ Transaction.prototype = {
         } else {
             // Script or CSS on everything else. Using DOM 0 events because that
             // evens the playing field with older IEs.
+// ou-specific begins #5103 (until Moodle 2.4)
+/*
             node.onerror = onError;
             node.onload  = onLoad;
-
+*/
+            if (ua.ie >= 10) {
+                // We currently need to introduce a timeout for IE10, since it
+                // calls onerror/onload synchronously for 304s - messing up existing
+                // program flow.
+
+                // Remove this block if the following bug gets fixed by GA
+                // https://connect.microsoft.com/IE/feedback/details/763871/dynamically-loaded-scripts-with-304s-responses-interrupt-the-currently-executing-js-thread-onload
+                node.onerror = function() { setTimeout(onError, 0); };
+                node.onload  = function() { setTimeout(onLoad, 0); };
+            } else {
+                node.onerror = onError;
+                node.onload  = onLoad;
+            }
+// ou-specific ends #5103 (until Moodle 2.4)
             // If this browser doesn't fire an event when CSS fails to load,
             // fail after a timeout to avoid blocking the transaction queue.
             if (!env.cssFail && !isScript) {
-- 
1.7.10.msysgit.1