diff --git a/advanced/index.php b/advanced/index.php
index b6597c51..a93dfc4c 100644
--- a/advanced/index.php
+++ b/advanced/index.php
@@ -24,7 +24,7 @@ unset($setupVars);
 $landPage = "../landing.php";
 
 // Define array for hostnames to be accepted as self address for splash page
-$authorizedHosts = [];
+$authorizedHosts = ["localhost"];
 if (!empty($_SERVER["FQDN"])) {
     // If setenv.add-environment = ("fqdn" => "true") is configured in lighttpd,
     // append $serverName to $authorizedHosts