anchor.diff:  import 'package:crypto/crypto.dart';
   import 'package:http_server/http_server.dart';
   import 'package:clean_router/server.dart';
  -
  -import 'static_file_handler.dart';
   
   typedef void RequestHandler(Request request);
   
  
positive.code:    */*/
    void addStaticView(String routeName, String documentRoot) {
      var vd = new VirtualDirectory(documentRoot);
      /*StaticFileHandler fileHandler = new StaticFileHandler(documentRoot);
      _requestNavigator.registerHandler(routeName, (httpRequest, urlParams)
          => fileHandler.handleRequest(httpRequest, urlParams["_tail"]));*/
      _requestNavigator.registerHandler(routeName, (httpRequest, urlParams) {
        var relativePath = urlParams['_tail'];
        if (relativePath.split('/').contains('..')) {
  
negative.code:         return;
        }
        String path = documentRoot + relativePath;
        FileSystemEntity.type(path).then((type) {
          switch (type) {
            case FileSystemEntityType.FILE:
  