如何在Chrome运行期间将浏览器数据(cookies、本地存储)保存在Flutter Web中？

import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';
import 'package:cookie_manager/cookie_manager.dart';
import 'package:shared_preferences/shared_preferences.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Flutter Web'),
        ),
        body: WebView(
          initialUrl: 'https://example.com',
          javascriptMode: JavascriptMode.unrestricted,
          onWebViewCreated: (WebViewController controller) async {
            // 读取浏览器的cookies
            List<Cookie> cookies = await CookieManager.getCookies('https://example.com');
            // 将cookies保存到Flutter Web中
            SharedPreferences prefs = await SharedPreferences.getInstance();
            prefs.setStringList('cookies', cookies.map((cookie) => cookie.toString()).toList());
          },
        ),
      ),
    );
  }
}

<base href="/">