diff --git a/Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.cpp b/Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.cpp
index 837d5cdd4e..6e9c2e2f4d 100644
--- a/Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.cpp
+++ b/Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.cpp
@@ -112,21 +112,15 @@ static Vector<FlyString> s_quirks_public_ids = {
 
 RefPtr<DOM::Document> parse_html_document(const StringView& data, const URL& url, const String& encoding)
 {
-    HTMLDocumentParser parser(data, TextCodec::get_standardized_encoding(encoding));
+    auto document = DOM::Document::create(url);
+    HTMLDocumentParser parser(document, data, TextCodec::get_standardized_encoding(encoding));
     parser.run(url);
-    return parser.document();
+    return document;
 }
 
-HTMLDocumentParser::HTMLDocumentParser(const StringView& input, const String& encoding)
+HTMLDocumentParser::HTMLDocumentParser(DOM::Document& document, const StringView& input, const String& encoding)
     : m_tokenizer(input, encoding)
-{
-    m_document = DOM::Document::create();
-    m_document->set_encoding(encoding);
-}
-
-HTMLDocumentParser::HTMLDocumentParser(const StringView& input, const String& encoding, DOM::Document& existing_document)
-    : m_tokenizer(input, encoding)
-    , m_document(existing_document)
+    , m_document(document)
 {
     m_document->set_encoding(encoding);
 }
@@ -2975,7 +2969,8 @@ DOM::Document& HTMLDocumentParser::document()
 
 NonnullRefPtrVector<DOM::Node> HTMLDocumentParser::parse_html_fragment(DOM::Element& context_element, const StringView& markup)
 {
-    HTMLDocumentParser parser(markup, "utf-8");
+    auto temp_document = DOM::Document::create();
+    HTMLDocumentParser parser(*temp_document, markup, "utf-8");
     parser.m_context_element = context_element;
     parser.m_parsing_fragment = true;
     parser.document().set_quirks_mode(context_element.document().mode());
@@ -3022,5 +3017,4 @@ NonnullRefPtrVector<DOM::Node> HTMLDocumentParser::parse_html_fragment(DOM::Elem
     }
     return children;
 }
-
 }
diff --git a/Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.h b/Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.h
index f7db80abf5..4abbb74b72 100644
--- a/Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.h
+++ b/Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.h
@@ -63,8 +63,7 @@ RefPtr<DOM::Document> parse_html_document(const StringView&, const URL&, const S
 
 class HTMLDocumentParser {
 public:
-    HTMLDocumentParser(const StringView& input, const String& encoding);
-    HTMLDocumentParser(const StringView& input, const String& encoding, DOM::Document& existing_document);
+    HTMLDocumentParser(DOM::Document&, const StringView& input, const String& encoding);
     ~HTMLDocumentParser();
 
     void run(const URL&);
@@ -180,7 +179,7 @@ private:
     bool m_stop_parsing { false };
     size_t m_script_nesting_level { 0 };
 
-    RefPtr<DOM::Document> m_document;
+    NonnullRefPtr<DOM::Document> m_document;
     RefPtr<HTMLHeadElement> m_head_element;
     RefPtr<HTMLFormElement> m_form_element;
     RefPtr<DOM::Element> m_context_element;
diff --git a/Libraries/LibWeb/Loader/FrameLoader.cpp b/Libraries/LibWeb/Loader/FrameLoader.cpp
index 9df29cf52e..632f25d736 100644
--- a/Libraries/LibWeb/Loader/FrameLoader.cpp
+++ b/Libraries/LibWeb/Loader/FrameLoader.cpp
@@ -214,7 +214,8 @@ bool FrameLoader::load(const URL& url, Type type)
 
 void FrameLoader::load_html(const StringView& html, const URL& url)
 {
-    HTML::HTMLDocumentParser parser(html, "utf-8");
+    auto document = DOM::Document::create(url);
+    HTML::HTMLDocumentParser parser(document, html, "utf-8");
     parser.run(url);
     frame().set_document(&parser.document());
 }
diff --git a/Userland/test-web.cpp b/Userland/test-web.cpp
index cf06d58d6a..4a1a66e0ae 100644
--- a/Userland/test-web.cpp
+++ b/Userland/test-web.cpp
@@ -240,7 +240,7 @@ void TestRunner::run()
         Web::ResourceLoader::the().load_sync(
             page_to_load,
             [&](auto data, auto&) {
-                Web::HTML::HTMLDocumentParser parser(data, "utf-8", *m_page_view->document());
+                Web::HTML::HTMLDocumentParser parser(*m_page_view->document(), data, "utf-8");
                 parser.run(page_to_load);
             },
             [page_to_load](auto error) {
@@ -350,7 +350,8 @@ JSFileResult TestRunner::run_file_test(const String& test_path)
         page_to_load,
         [&](auto data, auto&) {
             // Create a new parser and immediately get its document to replace the old interpreter.
-            Web::HTML::HTMLDocumentParser parser(data, "utf-8");
+            auto document = Web::DOM::Document::create();
+            Web::HTML::HTMLDocumentParser parser(document, data, "utf-8");
             auto& new_interpreter = parser.document().interpreter();
 
             // Setup the test environment and call "__BeforeInitialPageLoad__"