anchor.diff:                  url: $(this).attr('href'),
                   type: 'DELETE',
                   contentType: 'application/json',
  -                data: JSON.stringify({_csrf: $('input[name="_csrf"]').val()}),
  +                data: JSON.stringify({_csrf: _csrf}),
                   dataType: 'json',
                   cache: false,
                   error: function (XMLHttpRequest, textStatus, errorThrow) {
  
positive.code:                 type: 'POST',
                  contentType: 'application/json',
                  data: JSON.stringify({
                      _csrf: modal.find('input[name="_csrf"]').val(),
                      configs: data,
                      targetId: modal.find('select[name="target-id"] > option:selected').val()}),
                  dataType: 'json',
  
negative.code:                 cache: false,
                  contentType: false,
                  headers: {
                      'x-xsrf-token': _csrf
                  },
                  dataType: 'json',
                  processData: false,
  