I have in the first file.js

map.on(L.Draw.Event.CREATED, function (e) {
  drawnItems.addLayer(e.layer);
  var collection = drawnItems.toGeoJSON();
  localStorage.setItem('gameStorage', JSON.stringify(collection));
});

When I want to get the value for localstorage in the second file2.js

    var obj = JSON.parse(localStorage.getItem('gameStorage'));
    var m1 = L.marker([longitude_x, latitude_y]); 
    var polygon = L.polygon(obj.features[0].geometry.coordinates, {
      weight: 1,
      fillOpacity: 0.7,
      color: 'red',
      dashArray: '3'
    });

console.log(polygon.contains(m1.getLatLng()))

I got null . How I can resolve it , any idea please