From 4ef9edbff7dffe82f515ad699bf6284113699fd0 Mon Sep 17 00:00:00 2001
From: davidot <david.tuin@gmail.com>
Date: Fri, 23 Jul 2021 11:52:01 +0200
Subject: [PATCH] LibWeb: Fix that empty event handlers return null instead of
 crashing

---
 Userland/Libraries/LibWeb/CodeGenerators/WrapperGenerator.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Userland/Libraries/LibWeb/CodeGenerators/WrapperGenerator.cpp b/Userland/Libraries/LibWeb/CodeGenerators/WrapperGenerator.cpp
index 395fc351f4..805ddf60a4 100644
--- a/Userland/Libraries/LibWeb/CodeGenerators/WrapperGenerator.cpp
+++ b/Userland/Libraries/LibWeb/CodeGenerators/WrapperGenerator.cpp
@@ -1437,6 +1437,9 @@ static @fully_qualified_name@* impl_from(JS::VM& vm, JS::GlobalObject& global_ob
 )~~~");
         } else if (return_type.name == "EventHandler") {
             scoped_generator.append(R"~~~(
+    if (retval.callback.is_null())
+        return JS::js_null();
+
     return retval.callback.cell();
 )~~~");
         } else {