From 9a7cdbbe2d59518d83f04da726c821ced35ea663 Mon Sep 17 00:00:00 2001
From: Robbie Averill <robbie@silverstripe.com>
Date: Fri, 26 Jul 2019 09:53:54 +0200
Subject: [PATCH] FIX Prevent undefined index notice when trying to determine
 HTTP_HOST during dev/build

---
 src/Model/Subsite.php       | 2 +-
 src/Model/SubsiteDomain.php | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Model/Subsite.php b/src/Model/Subsite.php
index 229604d..d3190bc 100644
--- a/src/Model/Subsite.php
+++ b/src/Model/Subsite.php
@@ -870,7 +870,7 @@ class Subsite extends DataObject
         }
 
         // If there are no objects, default to the current hostname
-        return $_SERVER['HTTP_HOST'];
+        return isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : 'localhost';
     }
 
     /**
diff --git a/src/Model/SubsiteDomain.php b/src/Model/SubsiteDomain.php
index 66432e9..a3aef03 100644
--- a/src/Model/SubsiteDomain.php
+++ b/src/Model/SubsiteDomain.php
@@ -185,7 +185,7 @@ class SubsiteDomain extends DataObject
      */
     public function getSubstitutedDomain()
     {
-        $currentHost = $_SERVER['HTTP_HOST'];
+        $currentHost = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : 'localhost';
 
         // If there are wildcards in the primary domain (not recommended), make some
         // educated guesses about what to replace them with: