From 6b9fee93269d6b95e3c2203d8e87a24b7c71f884 Mon Sep 17 00:00:00 2001
From: Marcel Pociot <m.pociot@gmail.com>
Date: Thu, 10 Jun 2021 21:10:50 +0200
Subject: [PATCH] Update TunnelMessageController.php

---
 app/Server/Http/Controllers/TunnelMessageController.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/Server/Http/Controllers/TunnelMessageController.php b/app/Server/Http/Controllers/TunnelMessageController.php
index f1ce487..a2635e5 100644
--- a/app/Server/Http/Controllers/TunnelMessageController.php
+++ b/app/Server/Http/Controllers/TunnelMessageController.php
@@ -70,6 +70,10 @@ class TunnelMessageController extends Controller
 
     protected function detectSubdomain(Request $request): ?string
     {
+        if (substr_count($request->header('Host'), '.') === 1) {
+            return null;
+        }
+
         $subdomain = Str::before($request->header('Host'), '.');
 
         return $subdomain === $request->header('Host') ? null : $subdomain;