layerGroup not working

[geyerbri]

@Falke-Design

Using example code from your updated repo or README,

var marker1 = L.marker([51.5, -0.09], {time: "2013-01-22 08:42:26+01"});
var marker2 = L.marker([51.6, -0.09], {time: "2013-01-22 10:00:26+01"});
var marker3 = L.marker([51.7, -0.09], {time: "2013-01-22 10:03:29+01"});

var pointA = new L.LatLng(51.8, -0.09);
var pointB = new L.LatLng(51.9, -0.2);
var pointList = [pointA, pointB];

var polyline = new L.Polyline(pointList, {
    time: "2013-01-22 10:24:59+01",
    color: 'red',
    weight: 3,
    opacity: 1,
    smoothFactor: 1
});


layerGroup = L.layerGroup([marker1, marker2, marker3, polyline ]);
var sliderControl = L.control.sliderControl({layer:layerGroup});
myMap.addControl(sliderControl);
sliderControl.startSlider();

the page returns this error:

SliderControl.js:55 Uncaught TypeError: Cannot read property 'properties' of undefined
at compare (SliderControl.js:55)
at Array.sort ()
at i.onAdd (SliderControl.js:85)
at i.addTo (leaflet.js:5)
at i.addControl (leaflet.js:5)
at (index):59

Error does not appear when using geoJSON().

Any idea what's going on?

(example at: https://geyerbri.github.io/LeafletSlider/test.html)
(code at: https://github.com/geyerbri/LeafletSlider/blob/master/test.html)

[Falke-Design]

Hi @geyerbri,
I fixed the problem. It was because normal markers have no feature (geojson) property

[geyerbri]

Thank you so much!