From 8c33731ac63a3ec07a99ab3a533a71470fd8921f 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 30a1a6ec9876ba..149a926841b635 100644
--- a/src/node_url.cc
+++ b/src/node_url.cc
@@ -95,6 +95,11 @@ 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.