diff --git a/Userland/Libraries/LibWeb/HTML/Storage.cpp b/Userland/Libraries/LibWeb/HTML/Storage.cpp
index e258a44a49..456c8349e4 100644
--- a/Userland/Libraries/LibWeb/HTML/Storage.cpp
+++ b/Userland/Libraries/LibWeb/HTML/Storage.cpp
@@ -10,9 +10,9 @@
 
 namespace Web::HTML {
 
-JS::NonnullGCPtr<Storage> Storage::create(JS::Realm& realm)
+WebIDL::ExceptionOr<JS::NonnullGCPtr<Storage>> Storage::create(JS::Realm& realm)
 {
-    return realm.heap().allocate<Storage>(realm, realm).release_allocated_value_but_fixme_should_propagate_errors();
+    return MUST_OR_THROW_OOM(realm.heap().allocate<Storage>(realm, realm));
 }
 
 Storage::Storage(JS::Realm& realm)
diff --git a/Userland/Libraries/LibWeb/HTML/Storage.h b/Userland/Libraries/LibWeb/HTML/Storage.h
index 2fc749ee88..4a12ab704d 100644
--- a/Userland/Libraries/LibWeb/HTML/Storage.h
+++ b/Userland/Libraries/LibWeb/HTML/Storage.h
@@ -16,7 +16,7 @@ class Storage : public Bindings::PlatformObject {
     WEB_PLATFORM_OBJECT(Storage, Bindings::PlatformObject);
 
 public:
-    static JS::NonnullGCPtr<Storage> create(JS::Realm&);
+    static WebIDL::ExceptionOr<JS::NonnullGCPtr<Storage>> create(JS::Realm&);
     ~Storage();
 
     size_t length() const;
diff --git a/Userland/Libraries/LibWeb/HTML/Window.cpp b/Userland/Libraries/LibWeb/HTML/Window.cpp
index 76af7c0448..f301442023 100644
--- a/Userland/Libraries/LibWeb/HTML/Window.cpp
+++ b/Userland/Libraries/LibWeb/HTML/Window.cpp
@@ -864,7 +864,7 @@ JS::NonnullGCPtr<HTML::Storage> Window::local_storage()
 
     static HashMap<Origin, JS::Handle<HTML::Storage>> local_storage_per_origin;
     auto storage = local_storage_per_origin.ensure(associated_document().origin(), [this]() -> JS::Handle<HTML::Storage> {
-        return *HTML::Storage::create(realm());
+        return *HTML::Storage::create(realm()).release_value_but_fixme_should_propagate_errors();
     });
     return *storage;
 }
@@ -876,7 +876,7 @@ JS::NonnullGCPtr<HTML::Storage> Window::session_storage()
 
     static HashMap<Origin, JS::Handle<HTML::Storage>> session_storage_per_origin;
     auto storage = session_storage_per_origin.ensure(associated_document().origin(), [this]() -> JS::Handle<HTML::Storage> {
-        return *HTML::Storage::create(realm());
+        return *HTML::Storage::create(realm()).release_value_but_fixme_should_propagate_errors();
     });
     return *storage;
 }