Dompdf does not show any data on screen

Question

I'm using Laravel 5.8 and installed Dompdf for creating some pdf files as view.

So in the Controller method for making pdf files, I added this:

public function convertToPdf(Request $request, Order $order)
    {
        $args = [
          'order'  => $order,
          'address'  => $order->order_address->first(),
          'details'  => $order->orderDetail,
          'sendType'  => $order->productSubmit,
          'coupons'  => $this->cartController->computeDiscountForOutRequests($order->ord_object_id, $order->ord_creator_id),
          'payments'  => $order->payments,
          'user'      => User::query()->find($order->ord_creator_id)
        ];
        
        $dompdf = new Dompdf();
        $dompdf->loadHtml(view('admin.shop.orders.order_details_pdf',compact('args')));
        
        $dompdf->setPaper('A4','landscape');
        
        $dompdf->render();
        
        $dompdf->stream('demo.pdf',['Attachment' => false]);
    }

And in the view order_details_pdf:

{{ $args['order']->ord_title }}

However, it is not printing anything on the screen.

So what's going wrong here? How can I show data on this blade when using Dompdf?