From f5558e0e57199138ebda183152c3a008d7d34eb4 Mon Sep 17 00:00:00 2001
From: DiamondYuan <541832074@qq.com>
Date: Thu, 15 Mar 2018 04:45:05 +0800
Subject: [PATCH] Fix js error in homepage (#7680)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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When  document.querySelector('#docsToc') is null ,get TypeError Cannot read property 'querySelector' of null 。
---
 _includes/footer-scripts.html | 1 +
 1 file changed, 1 insertion(+)

diff --git a/_includes/footer-scripts.html b/_includes/footer-scripts.html
index 091545d12a..07f1e86bd8 100644
--- a/_includes/footer-scripts.html
+++ b/_includes/footer-scripts.html
@@ -32,6 +32,7 @@ ga('send', 'pageview');
 
     function hideNav(toc){
         if (!toc) toc = document.querySelector('#docsToc')
+        if (!toc) return
             var container = toc.querySelector('.container')
 
                 // container is built dynamically, so it may not be present on the first runloop