Getting list of working proxies on Node.js (node module, promise)

proxylist.js

const osmosis = require('osmosis');
module.exports = function () {
  return new Promise(function (resolve, reject) {
    let proxies = [];
    osmosis
      .get('https://free-proxy-list.com/?search=1&up_time=60')
      .find('.proxy-list tbody tr td:first-child a')
      .set({ 'data': '@title' })
      .error(error => reject(proxies))
      .data(data => proxies.push(data.data))
      .then(event => {
        if (event.last) resolve(proxies);
      });
  });
}