From 26d2926390aa7542eab6e574b86460d5e4eb19e4 Mon Sep 17 00:00:00 2001
From: Allan Jardine <allan.jardine@sprymedia.co.uk>
Date: Sun, 23 Sep 2012 13:12:39 +0100
Subject: [PATCH] Fix: Ie9 throws an error when document.activeElement is used
 inside a frame or iframe... So need to wrap the test up in a try/catch.
 Nasty.

---
 media/js/jquery.dataTables.js | 11 +++++++++--
 media/src/api/api.methods.js  | 11 +++++++++--
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/media/js/jquery.dataTables.js b/media/js/jquery.dataTables.js
index 3a1b71af..a055e9b6 100644
--- a/media/js/jquery.dataTables.js
+++ b/media/js/jquery.dataTables.js
@@ -5622,8 +5622,15 @@
 					var n = oSettings.aanFeatures.f;
 					for ( var i=0, iLen=n.length ; i<iLen ; i++ )
 					{
-						if ( n[i]._DT_Input != document.activeElement )
-						{
+						// IE9 throws an 'unknown error' if document.activeElement is used
+						// inside an iframe...
+						try {
+							if ( n[i]._DT_Input != document.activeElement )
+							{
+								$(n[i]._DT_Input).val( sInput );
+							}
+						}
+						catch ( e ) {
 							$(n[i]._DT_Input).val( sInput );
 						}
 					}
diff --git a/media/src/api/api.methods.js b/media/src/api/api.methods.js
index d31c9e12..55cd85e3 100644
--- a/media/src/api/api.methods.js
+++ b/media/src/api/api.methods.js
@@ -683,8 +683,15 @@ this.fnFilter = function( sInput, iColumn, bRegex, bSmart, bShowGlobal, bCaseIns
 			var n = oSettings.aanFeatures.f;
 			for ( var i=0, iLen=n.length ; i<iLen ; i++ )
 			{
-				if ( n[i]._DT_Input != document.activeElement )
-				{
+				// IE9 throws an 'unknown error' if document.activeElement is used
+				// inside an iframe or frame...
+				try {
+					if ( n[i]._DT_Input != document.activeElement )
+					{
+						$(n[i]._DT_Input).val( sInput );
+					}
+				}
+				catch ( e ) {
 					$(n[i]._DT_Input).val( sInput );
 				}
 			}