Hello, I'm using DomPDF to try to return a report in pdf, but every time I call the view it loads like it's in an infinite loop and nothing happens. Follow my code CourseController.php

public function downloadPDF($id)
    {
      $curso = Curso::find($id);
      $alunos = $curso->alunos;
      $pdf = PDF::loadView('curso.pdf', compact('curso', 'alunos'));
      return $pdf->download('invoice.pdf');

    }

My route is calling like this:

Route::get('/cursos/{id}/pdf','CursoController@downloadPDF');

And the view I want to call is pdf.blade.php

@extends('master')
@section('content')


<div class="container">

<h2>{{$curso->nome}}</h2>

    <br>
    <div class="pull-right">
    </div>
    <table class="table table-striped">
    <thead>
      <tr>
        <th>ID</th>
        <th>Nome</th>
        <th>Nascimento</th>
        <th>logradouro</th>
        <th>No</th>
        <th>Bairro</th>
        <th>Cidade</th>
        <th>Estado</th>
        <th>Dt. Criação</th>
      </tr>
    </thead>
    <tbody>
      @foreach($alunos as $value)
      <tr>
        <td>{{$value->id}}</td>
        <td>{{$value->nome}}</td>
        <td>{{$value->data_nascimento}}</td>
        <td>{{$value->logradouro}}</td>
        <td>{{$value->numero}}</td>
        <td>{{$value->bairro}}</td>
        <td>{{$value->cidade}}</td>
        <td>{{$value->estado}}</td>
        <td>{{ date( 'd/m/Y' , strtotime($value->created_at))}}</td>

      </tr>
      @endforeach
    </tbody>
  </table>
  </div>


@endsection

I was able to generate the pdf by putting only one

PDF GENERATED