title: Changing kartik dynagrid action column
body: <p>Am using kartik yii2 dynagrid.Am trying to change the action delete actioncolumn but i get an error that  </p>
  
  <blockquote>
    <p>Method Not Allowed. This url can only handle the following request
    methods: POST.</p>
  </blockquote>
  
  <p>My code :</p>
  
  <pre><code>['class' =&gt; 'kartik\grid\ActionColumn','dropdown'=&gt;false,
      'order'=&gt;DynaGrid::ORDER_FIX_RIGHT,
                        'template'=&gt;'{delete}',
                          'buttons'=&gt;[
                            'delete' =&gt; function ($url, $model) {     
             return Html::a('&lt;span class="glyphicon glyphicon-plus"&gt;&lt;/span&gt;', $url, [
                                      'title' =&gt; Yii::t('yii', 'delete'),
                              ]);                                
  
                            }
                        ]                            
  ]
  </code></pre>
  
  <p>The other actions work well but changing the <code>'template'=&gt;'delete'</code> but only delete action fails.</p>