let@1.7.1/dist/leaflet.js"></script>
    <script src="https://unpkg.com/leaflet.vectorgrid/dist/Leaflet.VectorGrid.js"></script>
    <script>
        // Define custom CRS
        var customCRS = L.extend({}, L.CRS.Simple, {
            transformation: new L.Transformation(1, 0, 1, 0),
            scale: function (zoom) {
                return Math.pow(2, zoom);
            },
            zoom: function (scale) {
                return Math.log(scale) / Math.LN2;
            }
        });

        // Create