diff --git a/lib/ace/renderloop.js b/lib/ace/renderloop.js
index 3075d092..95a6b2c4 100644
--- a/lib/ace/renderloop.js
+++ b/lib/ace/renderloop.js
@@ -63,7 +63,7 @@ var RenderLoop = function(onRender) {
         }
     };
 
-    if (window.postMessage && window.location.protocol != "chrome:") {
+    if (window.postMessage) {
 
         this.messageName = "zero-timeout-message";
 
@@ -71,7 +71,7 @@ var RenderLoop = function(onRender) {
             if (!this.attached) {
                 var _self = this;
                 event.addListener(window, "message", function(e) {
-                    if (e.source == window && _self.callback && e.data == _self.messageName) {
+                    if (_self.callback && e.data == _self.messageName) {
                         event.stopPropagation(e);
                         _self.callback();
                     }