diff --git a/Userland/Libraries/LibWeb/DOM/Element.h b/Userland/Libraries/LibWeb/DOM/Element.h
index 0b9619651e..86fe0fc816 100644
--- a/Userland/Libraries/LibWeb/DOM/Element.h
+++ b/Userland/Libraries/LibWeb/DOM/Element.h
@@ -19,8 +19,8 @@
 #include <LibWeb/DOM/QualifiedName.h>
 #include <LibWeb/HTML/AttributeNames.h>
 #include <LibWeb/HTML/EventLoop/Task.h>
+#include <LibWeb/HTML/ScrollOptions.h>
 #include <LibWeb/HTML/TagNames.h>
-#include <LibWeb/HTML/Window.h>
 #include <LibWeb/Layout/Node.h>
 #include <LibWeb/WebIDL/ExceptionOr.h>
 
diff --git a/Userland/Libraries/LibWeb/Forward.h b/Userland/Libraries/LibWeb/Forward.h
index 6b5723f1c8..e5bf9e62da 100644
--- a/Userland/Libraries/LibWeb/Forward.h
+++ b/Userland/Libraries/LibWeb/Forward.h
@@ -7,6 +7,7 @@
 
 #pragma once
 
+#include <LibJS/Forward.h>
 #include <LibWeb/Bindings/Forward.h>
 
 namespace Web {
@@ -582,6 +583,8 @@ class DOMException;
 
 template<typename ValueType>
 class ExceptionOr;
+
+using Promise = JS::PromiseCapability;
 }
 
 namespace Web::WebSockets {
diff --git a/Userland/Libraries/LibWeb/HTML/FormControlInfrastructure.cpp b/Userland/Libraries/LibWeb/HTML/FormControlInfrastructure.cpp
index 64a3fa288f..7d8ee131f0 100644
--- a/Userland/Libraries/LibWeb/HTML/FormControlInfrastructure.cpp
+++ b/Userland/Libraries/LibWeb/HTML/FormControlInfrastructure.cpp
@@ -5,6 +5,7 @@
  */
 
 #include <AK/GenericLexer.h>
+#include <AK/Random.h>
 #include <LibWeb/HTML/FormControlInfrastructure.h>
 #include <LibWeb/HTML/FormDataEvent.h>
 #include <LibWeb/HTML/HTMLButtonElement.h>
diff --git a/Userland/Libraries/LibWeb/HTML/ScrollOptions.h b/Userland/Libraries/LibWeb/HTML/ScrollOptions.h
new file mode 100644
index 0000000000..288659f4fd
--- /dev/null
+++ b/Userland/Libraries/LibWeb/HTML/ScrollOptions.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2023, Andreas Kling <kling@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/Bindings/WindowGlobalMixin.h>
+
+namespace Web::HTML {
+
+// https://w3c.github.io/csswg-drafts/cssom-view/#dictdef-scrolloptions
+struct ScrollOptions {
+    Bindings::ScrollBehavior behavior { Bindings::ScrollBehavior::Auto };
+};
+
+}
diff --git a/Userland/Libraries/LibWeb/HTML/Window.h b/Userland/Libraries/LibWeb/HTML/Window.h
index be0b944a5e..a764fcdc87 100644
--- a/Userland/Libraries/LibWeb/HTML/Window.h
+++ b/Userland/Libraries/LibWeb/HTML/Window.h
@@ -22,6 +22,7 @@
 #include <LibWeb/HTML/MimeType.h>
 #include <LibWeb/HTML/Plugin.h>
 #include <LibWeb/HTML/Scripting/ImportMap.h>
+#include <LibWeb/HTML/ScrollOptions.h>
 #include <LibWeb/HTML/WindowEventHandlers.h>
 #include <LibWeb/HTML/WindowOrWorkerGlobalScope.h>
 #include <LibWeb/RequestIdleCallback/IdleRequest.h>
@@ -30,11 +31,6 @@ namespace Web::HTML {
 
 class IdleCallback;
 
-// https://w3c.github.io/csswg-drafts/cssom-view/#dictdef-scrolloptions
-struct ScrollOptions {
-    Bindings::ScrollBehavior behavior { Bindings::ScrollBehavior::Auto };
-};
-
 // https://w3c.github.io/csswg-drafts/cssom-view/#dictdef-scrolltooptions
 struct ScrollToOptions : public ScrollOptions {
     Optional<double> left;
diff --git a/Userland/Libraries/LibWeb/SVG/SVGRadialGradientElement.cpp b/Userland/Libraries/LibWeb/SVG/SVGRadialGradientElement.cpp
index a3ab138710..aa700a6d2d 100644
--- a/Userland/Libraries/LibWeb/SVG/SVGRadialGradientElement.cpp
+++ b/Userland/Libraries/LibWeb/SVG/SVGRadialGradientElement.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <LibWeb/Bindings/Intrinsics.h>
 #include <LibWeb/SVG/AttributeNames.h>
 #include <LibWeb/SVG/SVGRadialGradientElement.h>