diff --git a/src/ajax.js b/src/ajax.js
index dc1f8ecb6a8..ac6f08c09ca 100644
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -46,7 +46,6 @@ export function ajax(url, callback, data, options = {}) {
       }
     }
 
-    x.timeout = _timeout;
     if (useXDomainRequest) {
       x = new window.XDomainRequest();
       x.onload = function () {
@@ -83,6 +82,8 @@ export function ajax(url, callback, data, options = {}) {
     }
 
     x.open(method, url);
+    // IE needs timoeut to be set after open - see #1410
+    x.timeout = _timeout;
 
     if (!useXDomainRequest) {
       if (options.withCredentials) {