e.exports = function()

in static/js/tracker.js [1312:1322]


      e.exports = function (e, t) {
        if (!r(e)) return e;
        var n, o;
        if (t && 'function' == typeof (n = e.toString) && !r((o = n.call(e))))
          return o;
        if ('function' == typeof (n = e.valueOf) && !r((o = n.call(e))))
          return o;
        if (!t && 'function' == typeof (n = e.toString) && !r((o = n.call(e))))
          return o;
        throw TypeError("Can't convert object to primitive value");
      };