Pjax redirects to home page on a Gridview search

I’m trying to get gridview to use the post method instead of get. When i change it to post, and seach a column, it redirects to my home page, not sure whats going on. Here is what i have so far.

in my view

<div class="report-index-1">
    <?php Pjax::begin(['id' => 'report1', 
                'timeout' => false, 
                'enablePushState' => false, 
                'clientOptions' => ['method' => 'POST']]); 
      ?>
    
        <?= GridView::widget(
              'dataProvider' => $dataProvider,
              'filterModel' => $searchModel,
            ... gridview configuration...
        ]); ?>
    
    <?php Pjax::end(); ?>
</div>

<div class="report-index-2">
    <?php Pjax::begin(['id' => 'report2', 
                'timeout' => false, 
                'enablePushState' => false, 
                'clientOptions' => ['method' => 'POST']]); 
      ?>
    
        <?= GridView::widget(
               'dataProvider' => $dataProviderONE,
               'filterModel' => $searchModelONE,
            ... gridview configuration...
        ]); ?>
    
    <?php Pjax::end(); ?>
</div>

in my controller, i changed Yii::$app->request->queryParams to Yii::$app->request->post()

 public function actionIndex()
 {
        $searchModel = new ReportQuery();
        $dataProvider = $searchModel->search(Yii::$app->request->post());

        $searchModelONE = new ReportOneQuery();
        $dataProviderONE = $searchModelONE->search(Yii::$app->request->post());

        return $this->render('index', [
            'searchModel' => $searchModel,
            'dataProvider' => $dataProvider

            'searchModelONE' => $searchModelONE,
            'dataProviderONE' => $dataProviderONE
        ]);
  }

found it. had to add url of the post

 Pjax::begin(['id' => 'report2', 
                'timeout' => false, 
                'enablePushState' => false, 
 'clientOptions' => ['type' => 'POST', 'url' => Url::to(['/blabla/default/index'])]]);

but now the pagination doesn’t work. any ideas?