From 3284b5bef93d714a22fd3561ccee5d6108065cb6 Mon Sep 17 00:00:00 2001
From: picodoth <pikaleize@gmail.com>
Date: Mon, 16 Jul 2018 09:58:44 +0800
Subject: [PATCH] fix: preventive check in setChildrenSize

---
 src/DOMWrap.jsx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/DOMWrap.jsx b/src/DOMWrap.jsx
index 9608ede7..e966e932 100644
--- a/src/DOMWrap.jsx
+++ b/src/DOMWrap.jsx
@@ -109,6 +109,11 @@ class DOMWrap extends React.Component {
 
       () => { // callback
         const ul = container.childNodes[0];
+
+        if (!ul) {
+          return;
+        }
+
         const scrollWidth = getScrollWidth(ul);
 
         this.props.children.forEach((c, i) => this.childrenSizes[i] = getWidth(ul.children[i]));