From 8c32887b10d361849d3bfbd7d08dcd81e7453006 Mon Sep 17 00:00:00 2001
From: AJ ONeal <coolaj86@gmail.com>
Date: Fri, 24 Aug 2018 23:38:00 -0600
Subject: [PATCH] v2.4.2 proactive domain fronting protection

---
 index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 7efd19e..b6487a2 100644
--- a/index.js
+++ b/index.js
@@ -517,7 +517,7 @@ Greenlock.create = function (gl) {
         req.headers.host = host.join(':');
       }
 
-      if (gl.__sni_allow_fronting) {
+      if (!gl.__sni_allow_domain_fronting) {
         if (req.socket && 'string' === typeof req.socket.servername) {
           if (safehost && (safehost !== req.socket.servername.toLowerCase())) {
             res.statusCode = 400;