anchor.diff:        case "/update":
           log("Calling update $jsonMap");
           String result = await update(jsonMap['src']);
  -        res.write(result);
  +        writeResponse(res, result);
  +
           break;
         case "/startup":
           log("Calling update $jsonMap");
           String result = await startup(jsonMap['src']);
  -        res.write(result);
  +        writeResponse(res, result);
           break;
         case "/":
         default:
  
positive.code:   log("handleOptions");
    HttpResponse res = req.response;
    addCorsHeaders(res);
    print("${req.method}: ${req.uri.path}");
    res.statusCode = HttpStatus.NO_CONTENT;
    res.close();
  }
  
negative.code: 
  State _systemState = State.NOT_STARTED;
  
  writeResponse(HttpResponse res, String message) {
    res.add(UTF8.encode(JSON.encode({"output": message})));
  }
  
  Future<String> _runFletchCommnand(String command) async {
    log ("Calling Fletch: $command");
  