Mapy API WMS

shows Mapy API 4 with WMS service

<!DOCTYPE html>
<html style="height: 100%; width: 100%;">
    <head>
        <title>&#181Katastr </title> 
         <meta name="description" content="micro Katastr s využitím Mapy API v4 - sampl">
         <meta http-equiv="content-type" content="text/html; charset=UTF-8">    
         <meta name="author" content="Stanislav Sumbera - jmeno@prijmeni.com"> 
         <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
         <meta name="apple-mobile-web-app-capable" content="yes" />
         <meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;" />
         <script type="text/javascript" src="https://api4.mapy.cz/loader.js"></script>
         <script type="text/javascript">Loader.load();</script>
    </head>

<body style="width: 100%; height: 100%; margin: 0px; padding: 0px">
        <div id="map" style="width:100%; height:100%"></div>
        <script type="text/javascript">
            var m = new SMap(JAK.gel("map"), SMap.Coords.fromWGS84(14.41790, 50.12655), 15);
            m.addDefaultLayer(SMap.DEF_SMART_OPHOTO).enable();

// -- katastr layer
            m.addLayer(new SMap.Layer.WMS(null, "https://services.cuzk.cz/wms/wms.asp", {
                                                format: "image/png",
                                                "LAYERS": "DKM_I,RST_KN_I,RST_KMD_I",
                                                "TRANSPARENT": true,
                                                "SRS": "EPSG:32633"
                                            }, { alpha: true })).enable();

// -- marker layer
            var markerLayer = new SMap.Layer.Marker();
            m.addLayer(markerLayer).enable();
            var marker = new SMap.Marker(SMap.Coords.fromWGS84(0, 0), "positionMarker", {});
            markerLayer.addMarker(marker);

// -- controls
            m.addDefaultControls();
            m.addControl(new SMap.Control.Orientation({ mode: "ccw" }), { left: "5px", top: "5px" });
            m.addControl(new SMap.Control.Orientation({ mode: "cw" }), { left: "35px", top: "5px" });

// -- handle click
            m.getSignals().addListener(window, "map-click", function (signal) {
                // -- do not click on birds view images
                if (m.getZoom() >= 16 && m.getZoom() < 19) {
                    var coords = SMap.Coords.fromEvent(signal.data.event, m);
                    marker.setCoords(coords);
                    var jtskCoords = coords.toJTSK();
                    window.open("https://nahlizenidokn.cuzk.cz/MapaIdentifikace.aspx?l=KN&x=" + Math.round(-jtskCoords[1]) + "&y=" + Math.round(-jtskCoords[0]),
                                "Katastr", "width=750,height=700,status=yes,scrollbars=yes,resizable=yes");
                }
            });
        </script>
    </body>
</html>

Modified http://api4.mapy.cz/loader.js to a secure url

https://api4.mapy.cz/loader.js