fix missing countries overlay when starting disconnected

CHANGELOG.md

@@ -1,5 +1,6 @@
 ### Change Log for Node-RED Worldmap
 
+ - v2.40.1 - Fix missing countries overlay when starting disconnected.
  - v2.40.0 - Add handling for TAK event points from TAK ingest node.
  - v2.39.0 - Add client timezone to connect message. PR #245
  - v2.38.3 - Better fix for geojson multipoint icons.

README.md

@@ -13,6 +13,7 @@ Feel free to [![](https://img.shields.io/static/v1?label=Sponsor&message=%E2%9D%
 
 ### Updates
 
+- v2.40.1 - Fix missing countries overlay when starting disconnected.
 - v2.40.0 - Add handling for TAK event points from TAK ingest node.
 - v2.39.0 - Add client timezone to connect message. PR #245
 - v2.38.3 - Better fix for geojson multipoint icons.

package.json

@@ -1,6 +1,6 @@
 {
     "name": "node-red-contrib-web-worldmap",
-    "version": "2.40.0",
+    "version": "2.40.1",
     "description": "A Node-RED node to provide a web page of a world map for plotting things on.",
     "dependencies": {
         "@turf/bezier-spline": "~6.5.0",

worldmap/worldmap.js

@@ -147,7 +147,13 @@ var handleData = function(data) {
 
 window.onunload = function() { if (ws) ws.close(); }
 
-var onoffline = function() { if (!navigator.onLine) { map.addLayer(layers["_countries"]); } }
+var customTopoLayer = L.geoJson(null, {clickable:false, style: {color:"blue", weight:2, fillColor:"#cf6", fillOpacity:0.04}});
+layers["_countries"] = omnivore.topojson('images/world-50m-flat.json',null,customTopoLayer);
+overlays["countries"] = layers["_countries"];
+
+var onoffline = function() { if (!navigator.onLine) {
+    map.addLayer(overlays["countries"]);
+} }
 
 document.addEventListener ("keydown", function (ev) {
     // Set Ctl-Alt-3 to switch to 3d view
@@ -1216,7 +1222,6 @@ var addOverlays = function(overlist) {
                     sendDrawing(n);
                 });
         }
-
     }
 
     // Add the countries (world-110m) for offline use