Filter not working grdiview kartik bs5

[atmanegara]

using Grdiview kartik bs5,

add "panel" setting in gridview as follows

'panel' => [
'heading'=>'

Countries

',
'type'=>'success',
'before'=>Html::a(' Create Country', ['create'], ['class' => 'btn btn-success']),
'after'=>Html::a(' Reset Grid', ['index'], ['class' => 'btn btn-info']),
'footer'=>false
],

searh filter in gridview not working, but remove panel, search filter is work