From abefadb333760f97a77731a09cb6adbe3234eb8b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Torkel=20=C3=96degaard?= <torkel@grafana.com>
Date: Fri, 28 Sep 2018 09:30:56 +0200
Subject: [PATCH] fix: preloader element issue

---
 public/views/index.template.html | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/public/views/index.template.html b/public/views/index.template.html
index ec51a12d34f..c39d5e08321 100644
--- a/public/views/index.template.html
+++ b/public/views/index.template.html
@@ -275,7 +275,10 @@
     document.head.insertBefore(myCSS, document.head.childNodes[document.head.childNodes.length - 1].nextSibling);
     // switch loader to show all has loaded
     window.onload = function() {
-      document.getElementsByClassName("preloader")[0].className = "preloader preloader--done";
+      var preloader = document.getElementsByClassName("preloader");
+      if (preloader.length) {
+        preloader[0].className = "preloader preloader--done";
+      }
     };
   </script>