在下面的示例中，javascript模式：unrestrictMode.也在做同样的事情，启用flutter中的javascript。

MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: Scaffold(
        appBar: AppBar(
          title: Text("Foxhillbazaar.com"),
        ),
        body: Center(
          child: WebView(
            initialUrl: 'https://www.foxhillbazaar.com/',
            javascriptMode: JavascriptMode.unrestricted,
            onWebViewCreated: (WebViewController webViewController) {
              _controller = webViewController;
            },
          ),
        ),
      ),
    );