update

lib/services/location_line_service.dart

@@ -7,7 +7,7 @@ class LocationLineService{
     final geo = GeoJson();
     GeoJsonFeature? fs;
 
-    String url = 'http://localhost:8100/api/location_line/';
+    String url = 'http://container.intranet.sumasen.net:8100/api/location_line/';
     final response = await http.get(Uri.parse(url),
       headers: <String, String>{
         'Content-Type': 'application/json; charset=UTF-8',