From 4a9ae315198d19b8289f764463a5f2379d09dce1 Mon Sep 17 00:00:00 2001
From: Jungku Lee <zighart8456@naver.com>
Date: Sun, 20 Aug 2023 18:55:44 +0900
Subject: [PATCH] src: add a condition if the argument of `DomainToUnicode` is
 empty

PR-URL: https://github.com/nodejs/node/pull/49097
Refs: https://github.com/nodejs/node/pull/46410
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Deokjin Kim <deokjin81.kim@gmail.com>
---
 src/node_url.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/node_url.cc b/src/node_url.cc
index 85147ccd1c0d59..60300d08730128 100644
--- a/src/node_url.cc
+++ b/src/node_url.cc
@@ -100,6 +100,11 @@ void BindingData::DomainToUnicode(const FunctionCallbackInfo<Value>& args) {
   CHECK(args[0]->IsString());
 
   std::string input = Utf8Value(env->isolate(), args[0]).ToString();
+  if (input.empty()) {
+    return args.GetReturnValue().Set(
+        String::NewFromUtf8(env->isolate(), "").ToLocalChecked());
+  }
+
   // It is important to have an initial value that contains a special scheme.
   // Since it will change the implementation of `set_hostname` according to URL
   // spec.