From c772134e25c3364ff034544884039926ff47c581 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sun, 26 Sep 2021 00:48:30 +0200
Subject: [PATCH] LibWeb: Make update_style() a no-op if there's no browsing
 context

Style is needed to lay out and paint a document, but we can't do either
those when the document isn't attached to a browsing context.
---
 Userland/Libraries/LibWeb/DOM/Document.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Userland/Libraries/LibWeb/DOM/Document.cpp b/Userland/Libraries/LibWeb/DOM/Document.cpp
index 09fcff2c88..451165ff42 100644
--- a/Userland/Libraries/LibWeb/DOM/Document.cpp
+++ b/Userland/Libraries/LibWeb/DOM/Document.cpp
@@ -445,6 +445,8 @@ static void update_style_recursively(DOM::Node& node)
 
 void Document::update_style()
 {
+    if (!browsing_context())
+        return;
     update_style_recursively(*this);
     update_layout();
 }