From dd16d56dab3beec0ca191442ef13f11c9ebc6d3b Mon Sep 17 00:00:00 2001
From: Igor Sfiligoi <isfiligoi@ucsd.edu>
Date: Tue, 17 Dec 2013 02:48:01 +0000
Subject: Fix support for IE11, while keeping older IE versions still working

---
 src/lib/binaryXHR.js | 26 ++++++++++++++++++++------
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/src/lib/binaryXHR.js b/src/lib/binaryXHR.js
index b92d732..e4e7515 100644
--- a/src/lib/binaryXHR.js
+++ b/src/lib/binaryXHR.js
@@ -199,10 +199,17 @@ function FetchBinaryURL(url) {
   }
   request.send(null);
 
-  var response=request.responseBody;
-  if (response==undefined){ // responseBody is non standard, but the only way to make it work in IE
-    response=request.responseText;
+  var response=this.responseText;
+  try {
+    // for older IE versions, the value in responseText is not usable
+    if (IEBinary_getLength(this.responseBody)>0) {
+      // will get here only for older verson of IE
+      response=this.responseBody;
+    }
+  } catch (err) {
+    // not IE, do nothing
   }
+
   var bf=new BinaryFile(response);
   return bf;
 }
@@ -217,10 +224,17 @@ function FetchBinaryURL(url) {
 function FetchBinaryURLAsync(url, callback, callback_arg) {
   var callback_wrapper = function() {
     if(this.readyState == 4) {
-      var response=this.responseBody;
-      if (response==undefined){ // responseBody is non standard, but the only way to make it work in IE
-	response=this.responseText;
+      var response=this.responseText;
+      try {
+        // for older IE versions, the value in responseText is not usable
+        if (IEBinary_getLength(this.responseBody)>0) {
+          // will get here only for older verson of IE
+          response=this.responseBody;
+        }
+      } catch (err) {
+       // not IE, do nothing
       }
+
       var bf=new BinaryFile(response);
       if (callback_arg!=null) {
 	callback(bf,callback_arg);
-- 
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