Fixes #11432: Added HTTP status 421 "Misdirected Request" to list of statuses in `yii\web\Response`

Source: http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml

framework/CHANGELOG.md

@@ -6,6 +6,7 @@ Yii Framework 2 Change Log
 
 - Bug #11459: Fixed flash messages not destroyed when `session.auto_start = 1` set in php.ini (cartmanchen)
 - Enh #11414: Files specified as `null` in `yii\web\AssetBundle` won't be registered (Razzwan)
+- Eng #11432: Added HTTP status 421 "Misdirected Request" to list of statuses in `yii\web\Response` (dasmfm)
 
 
 2.0.8 April 28, 2016

framework/web/Response.php

@@ -204,6 +204,7 @@ class Response extends \yii\base\Response
         416 => 'Requested range unsatisfiable',
         417 => 'Expectation failed',
         418 => 'I\'m a teapot',
+        421 => 'Misdirected Request',
         422 => 'Unprocessable entity',
         423 => 'Locked',
         424 => 'Method failure',