From a8ab4d64c462c47c10da51fa12780d418e3a6127 Mon Sep 17 00:00:00 2001
From: Sam Atkins <sam@ladybird.org>
Date: Tue, 8 Apr 2025 15:37:20 +0100
Subject: [PATCH] LibWeb/DOM: Use document's URL as location for inline
 stylesheets

This is ad-hoc, and the spec doesn't seem to tell us what to actually do
here. Without this, following the spec steps for loading relative
`@import` URLs from a `<style>` tag always fails, because that uses the
parent style sheet's location as the base URL.
---
 Libraries/LibWeb/DOM/StyleElementUtils.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Libraries/LibWeb/DOM/StyleElementUtils.cpp b/Libraries/LibWeb/DOM/StyleElementUtils.cpp
index 6e030bb8a41..bd594f58858 100644
--- a/Libraries/LibWeb/DOM/StyleElementUtils.cpp
+++ b/Libraries/LibWeb/DOM/StyleElementUtils.cpp
@@ -54,7 +54,8 @@ void StyleElementUtils::update_a_style_block(DOM::Element& style_element)
 
     // FIXME: This is a bit awkward, as the spec doesn't actually tell us when to parse the CSS text,
     //        so we just do it here and pass the parsed sheet to create_a_css_style_sheet().
-    auto* sheet = parse_css_stylesheet(CSS::Parser::ParsingParams(style_element.document()), style_element.text_content().value_or(String {}));
+    // AD-HOC: Are we supposed to use the document's URL for the stylesheet's location? Not doing it breaks things.
+    auto* sheet = parse_css_stylesheet(CSS::Parser::ParsingParams(style_element.document()), style_element.text_content().value_or(String {}), style_element.document().url());
     if (!sheet)
         return;