Google Map API V3. Unable to create custom polyline for TRANSIT directions

Question

I am unable to create custom polyline for transit directions on Google API. Only part of the route is rendered, not all. It works for driving, walking & cycling but not for

Answer 1

A polylineOptions anonymous object is not (and shouldn't be) a google.maps.Polyline.

directionsService.route(request, function(response, status) {
  if (status == google.maps.DirectionsStatus.OK) {
    var polyLineOptions = {
        strokeColor: '#FF0000'
      };
    var options = {};
    options.directions = response;
    options.map = map;
    options.polylineOptions = polyLineOptions;
    //options.suppressMarkers = true;
    directionsDisplay.setOptions(options);// = new google.maps.DirectionsRenderer(options);
    polyLine.setMap(map);
    //directionsDisplay.setDirections(response);
  }
});

updated fiddle