anchor.diff:    }
   
     Future _processHealthRequest(io.HttpRequest request) async {
  -    if (!commonServerImpl.isHealthy) {
  +    if (!commonServerImpl.isHealthy || DateTime.now().isAfter(_serveUntil)) {
         _logger.severe('CommonServer is no longer healthy.'
             ' Intentionally failing health check.');
         request.response.statusCode = io.HttpStatus.internalServerError;
  
positive.code: const String _API_PREFIX = '/api/dartservices/';
  const String _healthCheck = '/_ah/health';
  const String _readynessCheck = '/_ah/ready';
  
  final Logger _logger = Logger('gae_server');
  
  
negative.code: 
  import 'dart:async';
  import 'dart:io' as io;
  import 'dart:math';
  
  import 'package:appengine/appengine.dart' as ae;
  import 'package:logging/logging.dart';
  