From 9ed7e0921392a2ec89d79a5c15bd2b619854f1bf Mon Sep 17 00:00:00 2001
From: Yanzhen Yu <yanzhen@smartx.com>
Date: Wed, 1 Apr 2026 12:00:00 +0800
Subject: [PATCH] check parentNode when calling insertBefore

When add new nodes, we may use insertBefore API to insert node before
its next sibling. But the sibling may not in the DOM tree at that
moment if it was in the missing node map.
---
 src/replay/index.ts | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/replay/index.ts b/src/replay/index.ts
index 9f9dac2a..90296c48 100644
--- a/src/replay/index.ts
+++ b/src/replay/index.ts
@@ -271,9 +271,13 @@ export class Replayer {
             return;
           }
 
-          if (previous && previous.nextSibling) {
+          if (
+            previous &&
+            previous.nextSibling &&
+            previous.nextSibling.parentNode
+          ) {
             parent.insertBefore(target, previous.nextSibling);
-          } else if (next) {
+          } else if (next && next.parentNode) {
             parent.insertBefore(target, next);
           } else {
             parent.appendChild(target);