Table headers in a View

I want to add headers to this table. But it does not work. I'm sure I'm doing something wrong. :)

function my_module_rates_page(provider) {
  try {
    var header = [];
    header.push({ data: 'Country' });
    header.push({ data: 'Landline' });
    header.push({ data: 'Mobile' });
    header.push({ data: 'SMS' });
    var content = {};
    content['my_rates_list'] = {
      theme: 'view',
      header: header,
      format: 'table',
      pager_pos: 'bottom',
      format_attributes: {
        border: 0,
      },
      path: 'mobile/rate/'+provider, /* the path to the view in Drupal */
      row_callback: 'my_module_rates_list_row',
      empty_callback: 'my_module_rates_list_empty',
      attributes: {
        id: 'my_rates_list_view'+provider
      }
    };
    return content;
  }
  catch (error) { console.log('my_module_rates_page - ' + error); }
}