Google地图信息窗口未显示

Question

我使用过Google Map Api。 当我开发仪表板时，Map和Info窗口工作正常。 但有时在Info窗口停止正常显示之前。 我更新了Api版本仍然无法正常工作。 我在两个项目中使用了这个Map Api，两个地方的行为都相同。 仅显示关闭图标和箭头图标，但内容不可见。 Screen shot of the map

这是在Map上设置标记的功能。

function showOnMap(_data,_objFlag){

    var markers = [];

    if(_objFlag=='disease'){
        for(i=0;i<_data.length;i++) 
        {
            var markerUrl = "";

            if(_data[i].disease.length>1){
                markerUrl = baseUrl+"images/marker_add.png";
            }else{
                markerUrl = baseUrl+"images/location-pin-"+_data[i].disease[0].color+".png";
            }
            var MapMarker = {
                    id:i
                    ,disease:_data[i].disease
                    ,address:_data[i].address
                    ,latitude: _data[i].lat
                    ,longitude: _data[i].lng
                    ,imgUrl: markerUrl
                };

            markers.push(MapMarker);
        }
        var map = mapWidget.getMap();

        markerCluster.init(map);
        markerCluster.setClusterClickListner(onClusterClicked);
        markerCluster.setMarkerClickListner(onMarkerClicked);
        markerCluster.setClusterMouseOverListner(onClusterMouseOver);
        markerCluster.setClusterMouseOutListner(onClusterMouseOut);
        markerCluster.addMultipleMarkers(map,markers,_objFlag);


    }
}

这是点击标记时的功能：

function onMarkerClicked(e){
    //console.log(e);
    var content = getMarkerInfo(e);
    //var content = "<div style='width:300px;background:#f00;height:100px;'>Hello World</div>";
    var info = new google.maps.MVCObject;
    info.set('position', e.center_);
    console.log(content)
    if(content!=""){
        markerCluster.displayMarkerCallout(e, content);
    }
}

这是获取标记信息的功能：

function getMarkerInfo(_marker){
    //console.log(_marker);
    var content = "";
    content = "<div style='width:150px;'>";
    for(var i=0; i<_marker.disease.length; i++){
        var imgPath = baseUrl+"images/graph/"+_marker.disease[i].color+".jpg";

        if(_marker.disease[i].name.length>10){
            var disName = _marker.disease[i].name;
            var wrapDisName = disName.substring(0, 10)+"..";
        }else{
            var disName = _marker.disease[i].name;
            var wrapDisName = disName;
        }
        var count = _marker.disease[0].count;

        content = content + "<div style='font-size:12px;width:100%; word-wrap: break-word;'><img src='"+imgPath+"' style='width:9px;height:9px;'>&nbsp;&nbsp;<span><strong><span style='position: relative;' title='"+_marker.disease[i].name+"'>"+wrapDisName+"</span></strong></span>"+ 
        "&nbsp;&nbsp;<span style='font-size:11px;color:#8C8888;position: relative;'>("+count+")</span></div>"
    }
    if(_marker.address == null || _marker.address ==""){
        address = "Unknown";
    }else{
        address = _marker.address;
    }
    content = content + "<div style='border-top:1px solid #cccccc;margin-top:6px;padding-top:2px;width:100%; word-wrap: break-word; font-size:11px'>"+address+"</div></div>"

    return content;
}