From ca94df3c880890c57ce9926eef8db5bae7ba0fe6 Mon Sep 17 00:00:00 2001
From: Bastiaan van der Plaat <bastiaan.v.d.plaat@gmail.com>
Date: Tue, 5 Dec 2023 21:17:46 +0100
Subject: [PATCH] LibWeb: Clean up shadow root of meter element

---
 Userland/Libraries/LibWeb/HTML/HTMLMeterElement.cpp | 6 +++++-
 Userland/Libraries/LibWeb/HTML/HTMLMeterElement.h   | 2 ++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/Userland/Libraries/LibWeb/HTML/HTMLMeterElement.cpp b/Userland/Libraries/LibWeb/HTML/HTMLMeterElement.cpp
index 3acf20e87a..873b29e996 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLMeterElement.cpp
+++ b/Userland/Libraries/LibWeb/HTML/HTMLMeterElement.cpp
@@ -5,7 +5,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <LibWeb/Bindings/Intrinsics.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOM/ShadowRoot.h>
 #include <LibWeb/HTML/HTMLMeterElement.h>
@@ -188,6 +187,11 @@ void HTMLMeterElement::inserted()
     create_shadow_tree_if_needed();
 }
 
+void HTMLMeterElement::removed_from(DOM::Node*)
+{
+    set_shadow_root(nullptr);
+}
+
 void HTMLMeterElement::create_shadow_tree_if_needed()
 {
     if (shadow_root_internal())
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLMeterElement.h b/Userland/Libraries/LibWeb/HTML/HTMLMeterElement.h
index c95188c93f..391da7867e 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLMeterElement.h
+++ b/Userland/Libraries/LibWeb/HTML/HTMLMeterElement.h
@@ -41,6 +41,7 @@ public:
 private:
     CSS::Selector::PseudoElement m_pseudo_element;
 };
+
 class HTMLMeterElement final : public HTMLElement {
     WEB_PLATFORM_OBJECT(HTMLMeterElement, HTMLElement);
     JS_DECLARE_ALLOCATOR(HTMLMeterElement);
@@ -63,6 +64,7 @@ public:
 
     // ^HTMLElement
     virtual void inserted() override;
+    virtual void removed_from(DOM::Node*) override;
 
     // https://html.spec.whatwg.org/multipage/forms.html#category-label
     virtual bool is_labelable() const override { return true; }