diff --git a/boot.php b/boot.php
index 322340e5d7..836900fc4a 100755
--- a/boot.php
+++ b/boot.php
@@ -286,7 +286,12 @@ class App {
 
 		startup();
 
-		$this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS']))	?  'https' : 'http' );
+		$this->scheme = 'http';
+		if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
+			$this->scheme = 'https';
+		elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443)) 
+			$this->scheme = 'https';
+
 
 		if(x($_SERVER,'SERVER_NAME')) {
 			$this->hostname = $_SERVER['SERVER_NAME'];