From 8589ebef0d8002439d6aee2748536b02ad138c06 Mon Sep 17 00:00:00 2001
From: Mark Salsbery <msalsbery@hotmail.com>
Date: Sat, 19 Apr 2014 12:10:48 -0700
Subject: [PATCH] Fix for IE 11 Browser Detection

Proposed temporary fix until we don't need browser  sniffing anymore.
---
 src/openseadragon.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/openseadragon.js b/src/openseadragon.js
index c7f69749..655d7fb4 100644
--- a/src/openseadragon.js
+++ b/src/openseadragon.js
@@ -2080,7 +2080,8 @@ window.OpenSeadragon = window.OpenSeadragon || function( options ){
         //version and supporting feature sets.
         var app = navigator.appName,
             ver = navigator.appVersion,
-            ua  = navigator.userAgent;
+            ua  = navigator.userAgent,
+            regex;
 
         //console.error( 'appName: ' + navigator.appName );
         //console.error( 'appVersion: ' + navigator.appVersion );
@@ -2116,6 +2117,12 @@ window.OpenSeadragon = window.OpenSeadragon || function( options ){
                                 ua.indexOf( "Safari" )
                             )
                         );
+                    } else {
+                        regex = new RegExp( "Trident/.*rv:([0-9]{1,}[.0-9]{0,}) ");
+                        if ( regex.exec( ua ) !== null ) {
+                            $.Browser.vendor = $.BROWSERS.IE;
+                            $.Browser.version = parseFloat( RegExp.$1 );
+                        }
                     }
                 }
                 break;