fix image url errors in leaflet

web/pgadmin/static/js/sqleditor/geometry_viewer.js

@@ -4,23 +4,36 @@ import {Geometry} from 'wkx';
 import {Buffer} from 'buffer';
 import $ from 'jquery';
 import L from 'leaflet';
+import marker from 'leaflet/dist/images/marker-icon.png';
+import marker2x from 'leaflet/dist/images/marker-icon-2x.png';
+import markerShadow from 'leaflet/dist/images/marker-shadow.png';
+import layer from 'leaflet/dist/images/layers.png';
+import layer2x from 'leaflet/dist/images/layers-2x.png';
+
 import elementResizeDetectorMaker from 'element-resize-detector';
 
+
+// fix the icon url issue according to https://github.com/PaulLeCam/react-leaflet/issues/255
+marker,marker2x,markerShadow,layer,layer2x;
+
+
 let GeometryViewer = {
   'show_viewer':function (value) {
     Alertify.mapDialog || Alertify.dialog('mapDialog',function(){
       var $container = $('<div id="geometry-viewer-map" style="width: 100%; height: 100%"></div>');
       var erd = elementResizeDetectorMaker();
-      var geometryLayer = L.geoJSON();
+      var   geometryLayer = L.geoJSON();
       var osmLayer = L.tileLayer( 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
         attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a>',
       });
       var mymap;
+
       return {
         main:function(data){
           let wkbBuffer = new Buffer(data, 'hex');
           let geometry = Geometry.parse(wkbBuffer);
           geometryLayer.clearLayers();
+          alert(JSON.stringify(geometry.toGeoJSON()));
           geometryLayer.addData(geometry.toGeoJSON());
         },
         setup:function(){