not getting a specific data from getCookies();

[Ankush Mishra]

I am trying to access data from web cookies as

_onUrlChanged = flutterWebviewPlugin.onUrlChanged.listen((String url) async {
      if (url.contains('response.php')) {
        flutterWebviewPlugin.getCookies().then((cookies) {
          print(cookies);
          print(cookies['STATUS']);
          flutterWebviewPlugin.close();
        });
      }
    });

and the output of this is

I/flutter (12342): {"TXNAMOUNT: 549.00,  CURRENCY: INR, STATUS: TXN_SUCCESS,  ORDERID: sfsdfgfgfcvcfghdfgfg,  TXNDATE: 2021-07-08+14%3A31%3A26.0"}
I/flutter (12342): null

when I simple call cookies then it print all correct but when I trying to get special key from it then it shows null and when I use to call cookies.keys() then first one has " and last value has "