From 6e3b816763b1d9dd191d6785ba5ac9b0ecee0254 Mon Sep 17 00:00:00 2001
From: Andrew Kaster <akaster@serenityos.org>
Date: Tue, 19 Dec 2023 15:25:33 -0700
Subject: [PATCH] LibWeb: Represent transferred objects as an empty object

This matches the behavior of the three major engines.
---
 Userland/Libraries/LibWeb/HTML/StructuredSerialize.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Userland/Libraries/LibWeb/HTML/StructuredSerialize.cpp b/Userland/Libraries/LibWeb/HTML/StructuredSerialize.cpp
index 3529732ab9..6f5524f5b9 100644
--- a/Userland/Libraries/LibWeb/HTML/StructuredSerialize.cpp
+++ b/Userland/Libraries/LibWeb/HTML/StructuredSerialize.cpp
@@ -578,9 +578,8 @@ public:
         // 2. If memory[serialized] exists, then return memory[serialized].
         if (tag == ValueTag::ObjectReference) {
             auto index = m_serialized[m_position++];
-            // FIXME: For transferred items, find a way to avoid putting placeholders in the serialized data
             if (index == NumericLimits<u32>::max()) {
-                return JS::js_null();
+                return JS::Object::create(*m_vm.current_realm(), nullptr);
             }
             return m_memory[index];
         }