From 9b1e1febee597471467e155a58a38a2886c9ce9e Mon Sep 17 00:00:00 2001
From: Luke Childs <lukechilds123@gmail.com>
Date: Mon, 19 Sep 2016 19:06:06 +0100
Subject: [PATCH] Add feature detection test for document.querySelector

---
 public/assets/enhancements.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/public/assets/enhancements.js b/public/assets/enhancements.js
index c2589c9..0fa2bc8 100644
--- a/public/assets/enhancements.js
+++ b/public/assets/enhancements.js
@@ -32,11 +32,12 @@
         && div.firstChild
         && div.firstChild.namespaceURI
       ) == 'http://www.w3.org/2000/svg';
-    })()
+    })(),
+    querySelector: typeof document.querySelector === 'function'
   };
 
   // Check required features for favourite nodes
-  if(supports.localStorage && supports.inlineSVG) {
+  if(supports.localStorage && supports.inlineSVG && supports.querySelector) {
 
     // Get heart SVG
     var xhr = new XMLHttpRequest();