From 132a98be68ae91a85bf0ceb0d0988974b942e1a5 Mon Sep 17 00:00:00 2001
From: Michal Kleiner <michal@michalkleiner.cz>
Date: Tue, 21 Nov 2017 06:58:24 +1300
Subject: [PATCH] Support async script loading

Use addEventListener to schedule BN initialisation only if document is still loading (#34)
---
 javascript/betternavigator.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/javascript/betternavigator.js b/javascript/betternavigator.js
index 38191c9..e821846 100755
--- a/javascript/betternavigator.js
+++ b/javascript/betternavigator.js
@@ -32,13 +32,13 @@ function initialiseBetterNavigator() {
     }
 }
 
-if (document.addEventListener) {
+if (document.addEventListener && document.readyState === 'loading') {
     document.addEventListener("DOMContentLoaded", function () {
-        //wait til DOM is ready
+        // wait til DOM finishes loading
         initialiseBetterNavigator();
     });
 } else {
-    //This is the case for IE8 and below
-    //initialise straight away - fine if script is loaded after BN dom element
+    // This is the case for IE8 and below OR already loaded document (e.g. when using async)
+    // initialise straight away - fine if script is loaded after BN dom element
     initialiseBetterNavigator();
 }