From cc5e9870d1a801e33135e4234b16ce5fab0f5f64 Mon Sep 17 00:00:00 2001
From: Eoghan Murray <eoghan@getthere.ie>
Date: Wed, 12 Apr 2023 17:20:16 +0100
Subject: [PATCH] The bare unattachedDoc that I previously naively created
 didn't have a doctype and wasn't a HTML document, so the child style element
 didn't have the `old.style` attribute available

---
 packages/rrweb/src/record/mutation.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/rrweb/src/record/mutation.ts b/packages/rrweb/src/record/mutation.ts
index 6784489ab2..febcb2f618 100644
--- a/packages/rrweb/src/record/mutation.ts
+++ b/packages/rrweb/src/record/mutation.ts
@@ -462,7 +462,7 @@ export default class MutationBuffer {
     if (isIgnored(m.target, this.mirror)) {
       return;
     }
-    const unattachedDoc = new Document(); // avoid upsetting original document from a Content Security point of view
+    const unattachedDoc = document.implementation.createHTMLDocument(); // avoid upsetting original document from a Content Security point of view
     switch (m.type) {
       case 'characterData': {
         const value = m.target.textContent;