Javascript 地图标记不在IE上的地图中

这是我的密码

var styles = [
  {
    "featureType": "landscape",
    "stylers": [
      {"weight": 0.1},
      {"color": "#E7EDEF"}
    ]
  },
  ...
  {
    "featureType": "poi.park",
    "elementType": "labels",
    "stylers": [
      {"visibility": "on"}
    ]
  }
];

var map;
function initialize() {
  var centerM = new google.maps.LatLng(42.641185, 14.015790);
  var iconBase = window.location.origin + Drupal.settings.basePath + 'sites/default/themes/actomedia/img/';

  var mapOptions = {
    zoom: 15,
    center: centerM,
    mapTypeId: google.maps.MapTypeId.ROADMAP,
    styles: styles,
    scrollwheel: false
  };        

  map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);

  // Map Marker & infoBox
  markerOpt = {
    map: map,
    icon: iconBase + 'puntoEnergy_map_ico.png',
    title: 'Punto Energy',
    animation: google.maps.Animation.DROP
  };
   markerPicasso = new google.maps.Marker($.extend({position: centerM}, markerOpt));

}
google.maps.event.addDomListener(window, 'load', initialize);

地图在Chrome和Firefox中运行良好，但在IE中没有显示标记。
有人知道怎么解决吗

我试图删除标记动画，检查代码中的所有逗号，但仍然不起作用

---更新---

在回答Anto Jurković的问题之后，我试图打印图标URL，但我发现window.location.origin中有一个bug，它返回未定义的内容给我

我将此代码放在js文件的顶部（surce）进行了修复

---

我正在使用以下功能使用Creting Marker：

createMarker(Map, legs[i].start_location, legs[i].start_address, markerletter);

function createMarker(map, latlng, html, color) {       
    var contentString = html;
    var marker = new google.maps.Marker({
        position: latlng,
        map: map,
        shadow: iconShadow,
        icon: getMarkerImage(color),
        shape: iconShape,           
        zIndex: Math.round(latlng.lat() * -100000) << 5
    });

    //marker.myname = label;
    google.maps.event.addListener(marker, 'click', function () {
        //Set Infowindow Logic
    });
    return marker;
}

createMarker（映射，legs[i]。起始位置，legs[i]。起始地址，markerletter）；
函数createMarker（映射、板条、html、颜色）{
var contentString=html；
var marker=new google.maps.marker({
位置：latlng，
地图：地图，
影子：iconShadow，
图标：getMarkerImage（彩色），
形状：iconShape，
zIndex:Math.round（latlng.lat（）*-100000）现在我正在调试IE10，但在那之后我也必须检查第9和第8个^^^我用IE10、9和8检查了这段代码，没有问题。唯一的区别是图标。最有可能的是div-map画布、html和body的样式。如果你将其作为文件加载，你会在IE中看到你的图标吗？
createMarker(Map, legs[i].start_location, legs[i].start_address, markerletter);

function createMarker(map, latlng, html, color) {       
    var contentString = html;
    var marker = new google.maps.Marker({
        position: latlng,
        map: map,
        shadow: iconShadow,
        icon: getMarkerImage(color),
        shape: iconShape,           
        zIndex: Math.round(latlng.lat() * -100000) << 5
    });

    //marker.myname = label;
    google.maps.event.addListener(marker, 'click', function () {
        //Set Infowindow Logic
    });
    return marker;
}

function initialize() {
    var Lattts = document.getElementById('lat').value;
    var Longgs = document.getElementById('long').value;    

    var myLatlng = new google.maps.LatLng(parseFloat(Lattts), parseFloat(Longgs));
    var map_canvas = document.getElementById('map_canvas');
    var map_options = {
        center: myLatlng,
        zoom: 17,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    }
    var map = new google.maps.Map(map_canvas, map_options)

    var icon = {            
        url: 'https://maps.gstatic.com/mapfiles/ms2/micons/blue-dot.png'
    };

    var contentString = 'Contents';

    var infowindow = new google.maps.InfoWindow({
        content: contentString
    });

    var marker = new google.maps.Marker({
        position: myLatlng,
        map: map,
        icon: icon,
        zIndex: Math.round(myLatlng.lat() * -100000) << 5,
        animation: google.maps.Animation.DROP
    });

    //marker.setAnimation(google.maps.Animation.BOUNCE);

    google.maps.event.addListener(marker, 'click', function () {
        infowindow.open(map, marker);
        if (marker.getAnimation() != null) {
            marker.setAnimation(null);
        } else {
            marker.setAnimation(google.maps.Animation.BOUNCE);
        }
    });

        setTimeout(function () { marker.setAnimation(google.maps.Animation.BOUNCE); }, 2000);
    }

    google.maps.event.addDomListener(window, 'load', initialize);