diff --git a/src/ajax.js b/src/ajax.js
index 18c265779..a57dc5ec2 100644
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -250,17 +250,23 @@
         var result, error = false
         if ((xhr.status >= 200 && xhr.status < 300) || xhr.status == 304 || (xhr.status == 0 && protocol == 'file:')) {
           dataType = dataType || mimeToDataType(settings.mimeType || xhr.getResponseHeader('content-type'))
-          result = xhr.responseText
-
-          try {
-            // http://perfectionkills.com/global-eval-what-are-the-options/
-            if (dataType == 'script')    (1,eval)(result)
-            else if (dataType == 'xml')  result = xhr.responseXML
-            else if (dataType == 'json') result = blankRE.test(result) ? null : $.parseJSON(result)
-          } catch (e) { error = e }
-
-          if (error) ajaxError(error, 'parsererror', xhr, settings, deferred)
-          else ajaxSuccess(result, xhr, settings, deferred)
+          
+          if (xhr.responseType == 'arraybuffer' || xhr.responseType == 'blob')
+            result = xhr.response
+          else {
+            result = xhr.responseText
+
+            try {
+              // http://perfectionkills.com/global-eval-what-are-the-options/
+              if (dataType == 'script')    (1,eval)(result)
+              else if (dataType == 'xml')  result = xhr.responseXML
+              else if (dataType == 'json') result = blankRE.test(result) ? null : $.parseJSON(result)
+            } catch (e) { error = e }
+
+            if (error) return ajaxError(error, 'parsererror', xhr, settings, deferred)
+          }
+
+          ajaxSuccess(result, xhr, settings, deferred)
         } else {
           ajaxError(xhr.statusText || null, xhr.status ? 'error' : 'abort', xhr, settings, deferred)
         }