Use Esri.WorldGrayCanvas tiles in custom.js

src/main/sourceapp/js/crophub.js

@@ -40,11 +40,9 @@ var GenesysMaps = {
     while (config !== null && config !== undefined) {
       var mapOptions = config.mapOptions;
       var map = L.map(config.element, mapOptions).setView(mapOptions.center, 4);
-      L.tileLayer('https://otile{s}-s.mqcdn.com/tiles/1.0.0/sat/{z}/{x}/{y}.png', {
-        attribution : 'MapQuest',
-        styleId : 22677,
-        subdomains : [ '1', '2', '3', '4' ],
-        opacity : 0.6
+      L.tileLayer('http://server.arcgisonline.com/ArcGIS/rest/services/Canvas/World_Light_Gray_Base/MapServer/tile/{z}/{y}/{x}', {
+    	  attribution: 'Tiles © Esri — Esri, DeLorme, NAVTEQ',
+    	  maxZoom: 16
       }).addTo(map);
       if (mapOptions.markerTitle !== null) {
         var marker = L.marker(mapOptions.center).addTo(map);