old_contents: "use strict";
  let fetch = require('node-fetch');
  let Converter = require("csvtojson");
  let Promise = require('bluebird');
  
  /**
   * Helps fetch Google Docs data
   * @param link URI of CSV file
   * @return {Promise<Token>} A promise to the token.
   */
  module.exports = function remoteCSVtoJSON (link) {
      return fetch(link)
          .then(response => response.text())
          .then(function (csv) {
              let converter = new Converter.Converter({
                  workerNum: 4
              });
              return new Promise(function (resolve, reject) {
                  return converter.fromString(csv, function (error, json) {
                      if (error) {
                          reject(error);
                      }
                      resolve(json);
                  });
              });
          })
          .catch(console.log)
  };
  
new_contents: "use strict";
  let fetch = require('node-fetch');
  let Converter = require("csvtojson");
  let Promise = require('bluebird');
  
  /**
   * Helps fetch Google Docs data
   * @param link URI of CSV file
   * @return {Promise<Token>} A promise to the token.
   */
  module.exports = function remoteCSVtoJSON (link) {
      return fetch(link)
          .then(response => response.text())
          .then(function (csv) {
              let converter = new Converter.Converter({
                  workerNum: global.isDebugging ? 1 : 4
              });
              return new Promise(function (resolve, reject) {
                  return converter.fromString(csv, function (error, json) {
                      if (error) {
                          reject(error);
                      }
                      resolve(json);
                  });
              });
          })
          .catch(console.log)
  };
  
subject: Fix problem with freezing flow under debug plus many workers