From 2af89fc86af4b422aa76ea4972805f54af6d430c Mon Sep 17 00:00:00 2001
From: jxj <33154783+BlindMonkLeeSin@users.noreply.github.com>
Date: Thu, 2 Mar 2023 10:54:26 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E5=86=85=E5=AE=B9?=
 =?UTF-8?q?=E5=85=83=E7=B4=A0=E8=A2=AB=E9=87=8D=E5=A4=8D=E7=9B=91=E5=90=AC?=
 =?UTF-8?q?=E5=8F=98=E5=8C=96=E7=9A=84=E9=97=AE=E9=A2=98=20(#48)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Co-authored-by: jixianjing <xianjing.ji@mail.hypers.com>
---
 src/Nav.js | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/src/Nav.js b/src/Nav.js
index 7b1e4bb..d3635ac 100644
--- a/src/Nav.js
+++ b/src/Nav.js
@@ -237,16 +237,18 @@ class Nav extends React.PureComponent<Props, State> {
     }
     if (content) {
       if (window.MutationObserver) {
-        this.observe = new MutationObserver(() => {
-          if (!this.props.once) {
-            this.reload();
-          }
-        });
-        const config = {
-          childList: true,
-          subtree: true
-        };
-        this.observe.observe(content, config);
+        if (!this.observe) {
+          this.observe = new MutationObserver(() => {
+            if (!this.props.once) {
+              this.reload();
+            }
+          });
+          const config = {
+            childList: true,
+            subtree: true
+          };
+          this.observe.observe(content, config);
+        }
       } else {
         this.prevInnerHTML = content.innerHTML;
       }