From fcf38f6ae9623a01bd67d0dff8f99042255f993f Mon Sep 17 00:00:00 2001
From: erm1116 <cr7sc16@gmail.com>
Date: Tue, 27 Jun 2023 20:50:25 +0900
Subject: [PATCH] fix: use node.insertBefore for adding embed element

---
 extensions/chromium/contentscript.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/extensions/chromium/contentscript.js b/extensions/chromium/contentscript.js
index b0aa55300..1e596c493 100644
--- a/extensions/chromium/contentscript.js
+++ b/extensions/chromium/contentscript.js
@@ -132,8 +132,12 @@ function updateEmbedElement(elem) {
   }
   elem.type = "text/html";
   elem.src = getEmbeddedViewerURL(elem.src);
+
   if (parentNode) {
-    nextSibling.before(elem);
+    // Suppress linter warning: insertBefore is preferable to
+    // nextSibling.before(elem) because nextSibling may be null.
+    // eslint-disable-next-line unicorn/prefer-modern-dom-apis
+    parentNode.insertBefore(elem, nextSibling);
   }
 }