Issue #3128583 by RajabNatshah, Aporie, solideogloria, andrimont, aiphes,...

        var autocomplete_data_element = 'ui-autocomplete';

        var url = drupalSettings.coffee.dataPath || Drupal.url('/admin/coffee/get-data');

        var url;

        if (drupalSettings.coffee.dataPath) {

          url = drupalSettings.path.baseUrl + drupalSettings.coffee.dataPath;

        }

        else {

          url = Drupal.url('admin/coffee/get-data');

        }

        $.ajax({

          url: drupalSettings.path.baseUrl + url,

          url: url,

          dataType: 'json',

          success: function (data) {

            DrupalCoffee.dataset = data;