diff --git a/wp-includes/functions.php b/wp-includes/functions.php
index 9206f9b..8bfcf46 100644
--- a/wp-includes/functions.php
+++ b/wp-includes/functions.php
@@ -3794,6 +3794,8 @@ function is_ssl() {
 			return true;
 	} elseif ( isset($_SERVER['SERVER_PORT']) && ( '443' == $_SERVER['SERVER_PORT'] ) ) {
 		return true;
+	}elseif ( isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && ( 'https' == $_SERVER['HTTP_X_FORWARDED_PROTO'] ) ) {
+		return true;		
 	}
 	return false;
 }