title: laravel 419 status code (unknown status)
body: <p>I do an ajax call but I keep getting this error:</p>
  
  <pre><code>419 (unknown status)
  </code></pre>
  
  <p>i include in meta tag: </p>
  
  <pre><code>&lt;meta name="csrf-token" content="{{ csrf_token() }}"&gt;
  </code></pre>
  
  <p>my table (without form):</p>
  
  <pre><code> &lt;table class="table" id="dataTables"&gt;
                      &lt;thead&gt;
                      &lt;tr&gt;
                          &lt;td&gt;Full nametd&gt;
                          &lt;td class="text-center"&gt;Lớp&lt;/td&gt;
                          &lt;td class="text-center"&gt;&lt;input type="checkbox" id="select_all"&gt;&lt;/td&gt;
                      &lt;/tr&gt;
                      &lt;/thead&gt;
                  &lt;/table&gt;
  </code></pre>
  
  <p>i use DataTables library load all data from Controller:</p>
  
  <pre><code>var table = $('#dataTables').DataTable({
              "pagingType": "full_numbers",
              "processing": true,
              "serverSide": true,
              "lengthMenu": [[5, 10, -1], [5, 10, "All"]],
              "iDisplayLength": 5,
              "ordering": false,
              "ajax": '{!! url(Request::segment(1).'/lists?class_id='.Input::get('class_id')) !!}',
              'createdRow': function (row, data, dataIndex) {
                  $(row).attr('id', data.id);
              },
              "columns": [
                  ...
                  {
                      "data": "id", "sClass": "text-center",
                      "fnCreatedCell": function (nTd, sData, oData, iRow, iCol) {
                          $(nTd).html("&lt;input type='checkbox' name='check[]' value='" + oData.id + "'&gt;");
                      }
                  },
              ],
              "language": {
                  "url": "{{url('public/extension/datatables/vietnamese.json')}}"
              }
          });
  </code></pre>
  
  <p>My Ajax:</p>
  
  <pre><code>$('#save').click(function () {
              $.ajax({
                  type: 'POST',
                  url: "{{url('class/store')}}",
                  cache: false,
                  data: {"check": sThisVal }, //sThisVal get all input checkbox checked
                  success: function (r) {
                      $('#msg').html(r);
                  },
                  error: function (jqXHR, text, errorThrown) {
                      $('#msg').html(jqXHR + " " + text + " " + errorThrown);
                  }
              });
          });
  </code></pre>
  
  <p>My route:</p>
  
  <pre><code>Route::post('class/lists', 'ClassController@lists');
  </code></pre>
  
  <p>My controller method</p>
  
  <pre><code>public function store(Request $request){
      var_dump($request-&gt;all());exit;
  }
  </code></pre>
  
  <p>Result after click submit is null ???</p>