docs: function requestHypemKey(hypemId, callback) {
          var options = {
              method: "GET",
              url: HYPEM_TRACK_URL + hypemId,
              headers: {"Cookie": COOKIE},
              timeout: FIVE_SECONDS_IN_MILLIS
          };
  
          request(options, function (error, response) {
              if (!error && response.statusCode === 200) {
                  var bodyLines = response.body.split('\n');
                  _.forIn(bodyLines, function (bodyLine) {
                      if (bodyLine.indexOf('key') !== -1) {
                          // first hit should be the correct one
                          // fix if hypem changes that
                          try {
                              var key = JSON.parse(bodyLine.replace('</script>', '')).tracks[0].key;
                              callback(null, key);
                          } catch (error) {
                              // if an error happen here do nothing and parse
                              // the rest of the document
                          }
                      }
                  });
              } else {
                  callback(new Error("Nothing found: " + options.url), null);
              }
          });
      }