From 023ba51a08acba9a46e201a8f6ebd29bc1b51c53 Mon Sep 17 00:00:00 2001
From: jeffreytse <jeffreytse.mail@gmail.com>
Date: Sat, 3 Oct 2020 12:23:29 +0800
Subject: perfect: improve browser compatibility

---
 _includes/sidebar/article-menu.html | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to '_includes/sidebar')

diff --git a/_includes/sidebar/article-menu.html b/_includes/sidebar/article-menu.html
index 2e273de..3e618ff 100644
--- a/_includes/sidebar/article-menu.html
+++ b/_includes/sidebar/article-menu.html
@@ -36,9 +36,13 @@
     // The header element
     var header = document.querySelector('header.site-header');
 
-    function doMenuCollapse(index, over_items=20) {
+    function doMenuCollapse(index, over_items) {
       var items = menuContent.firstChild.children;
 
+      if (over_items == undefined) {
+        over_items = 20;
+      }
+
       if (items.length < over_items) {
         return;
       }
-- 
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