From f3cfceea8fc0e68c7ec6da5971598822d957a4d6 Mon Sep 17 00:00:00 2001
From: Ferdinand Prantl <prantlf@gmail.com>
Date: Wed, 31 Jul 2013 21:32:45 +0200
Subject: [PATCH] Enable response parsing and converting (from text to JSON,
 e.g.) by using the code from jQuery 1.9.1

---
 jquery.iecors.js | 63 +++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 57 insertions(+), 6 deletions(-)

diff --git a/jquery.iecors.js b/jquery.iecors.js
index 73af026..caf5737 100644
--- a/jquery.iecors.js
+++ b/jquery.iecors.js
@@ -18,18 +18,69 @@
 
       return {
         send: function( headers, complete ) {
+          // Get a new xdr
           var xdr = s.xdr();
 
           xdr.onload = function() {
-            var headers = { 'Content-Type': xdr.contentType };
-            complete(200, 'OK', { text: xdr.responseText }, headers);
+            var status, responseHeaders, statusText, responses;
+
+            // Firefox throws exceptions when accessing properties
+            // of an xdr when a network error occurred
+            // http://helpful.knobs-dials.com/index.php/Component_returned_failure_code:_0x80040111_(NS_ERROR_NOT_AVAILABLE)
+            try {
+
+              responses = {};
+              // IE8 does not set status at all.
+              status = xdr.status || 200;
+              if (xdr.contentType) {
+                responseHeaders = { 'Content-Type': xdr.contentType };
+                if (xdr.contentType.toLowerCase().indexOf("application/json") == 0)
+                  s.dataTypes.push("json");
+              }
+
+              // When requesting binary data, IE6-9 will throw an exception
+              // on any attempt to access responseText (#11426)
+              if ( typeof xdr.responseText === "string" ) {
+                responses.text = xdr.responseText;
+              }
+
+              // Firefox throws an exception when accessing
+              // statusText for faulty cross-domain requests
+              try {
+                statusText = xdr.statusText || "OK";
+              } catch( e ) {
+                // We normalize with Webkit giving an empty statusText
+                status = 0;
+                statusText = "";
+              }
+
+              // Filter status for non standard behaviors
+
+              // If the request is local and we have data: assume a success
+              // (success with no data won't get notified, that's the best we
+              // can do given current implementations)
+              if ( !status && s.isLocal && !s.crossDomain ) {
+                status = responses.text ? 200 : 404;
+              // IE - #1450: sometimes returns 1223 when it should be 204
+              } else if ( status === 1223 ) {
+                status = 204;
+              }
+
+            } catch( firefoxAccessException ) {
+                    complete( -1, firefoxAccessException );
+            }
+
+            // Call complete if needed
+            if ( responses ) {
+                complete( status, statusText, responses, responseHeaders );
+            }
           };
           
           // Apply custom fields if provided
-					if ( s.xhrFields ) {
-            xhr.onerror = s.xhrFields.error;
-            xhr.ontimeout = s.xhrFields.timeout;
-					}
+          if ( s.xhrFields ) {
+            xdr.onerror = s.xhrFields.error;
+            xdr.ontimeout = s.xhrFields.timeout;
+          }
 
           xdr.open( s.type, s.url );