Fixed http headers key

Author: AmitBu

src/middleware.php

@@ -1,6 +1,6 @@
 <?php
 
-const SIGNATURE_KEY = 'x-securenative';
+const SIGNATURE_KEY = 'HTTTP_X_SECURENATIVE';
 
 class Middleware
 {

src/utils.php

@@ -32,8 +32,8 @@ public static function userAgentFromRequest()
 
     public static function securHeaderFromRequest()
     {
-        if (array_key_exists('x-securenative', $_SERVER)) {
-            return $_SERVER['x-securenative'];
+        if (array_key_exists('HTTTP_X_SECURENATIVE', $_SERVER)) {
+            return $_SERVER['HTTTP_X_SECURENATIVE'];
         }
         return '';
     }