Fixes #14298: The default response formatter configs defined by `yii\web\Response::defaultFormatters()` now use the array syntax

framework/CHANGELOG.md

@@ -15,6 +15,7 @@ Yii Framework 2 Change Log
 - Bug #14192: Fixed wrong default null value for TIMESTAMP when using PostgreSQL (Tigrov)
 - Enh #14081: Added `yii\caching\CacheInterface` to make custom cache extensions adoption easier (silverfire)
 - Chg #14286: Used primary inputmask package name instead of an alias (samdark)
+- Enh #14298: The default response formatter configs defined by `yii\web\Response::defaultFormatters()` now use the array syntax (brandonkelly)
 
 2.0.12 June 05, 2017
 --------------------

framework/web/Response.php

@@ -998,9 +998,15 @@ class Response extends \yii\base\Response
     protected function defaultFormatters()
     {
         return [
-            self::FORMAT_HTML => 'yii\web\HtmlResponseFormatter',
-            self::FORMAT_XML => 'yii\web\XmlResponseFormatter',
-            self::FORMAT_JSON => 'yii\web\JsonResponseFormatter',
+            self::FORMAT_HTML => [
+                'class' => 'yii\web\HtmlResponseFormatter',
+            ],
+            self::FORMAT_XML => [
+                'class' => 'yii\web\XmlResponseFormatter',
+            ],
+            self::FORMAT_JSON => [
+                'class' => 'yii\web\JsonResponseFormatter',
+            ],
             self::FORMAT_JSONP => [
                 'class' => 'yii\web\JsonResponseFormatter',
                 'useJsonp' => true,