Why can't I see a cookie I sent from Flask to Flutter in the browser?-CodePudding

I am creating a Flutter Web app that requires login verification. The user makes a post request with authentication information and then my Flask app with send a cookie back to the client.

Here is the code for the Flask App

@app.route('/test', methods=['POST'])
@cross_origin(supports_credentials=True)
def test():
    resp = jsonify({'message' : 'Logged in!'})
    resp.set_cookie('Set-Cookie', "token", httponly = True, secure = False)

    return resp

Here is the Dart/Flutter code where I make the POST request and expect a cookie called 'Set-Cookie'.

class HttpService {

  static var dio = Dio();

  static testMethod() async {
    try {
      dio.options.extra['withCredentials'] = true;
      var response = await dio.post('http://127.0.0.1:5000/test');
      print(response);
    } catch (e) {
      print(e);
    }
  }

As you can see, I don't receive this cookie on my browser, but the request is successful and I get the JSON message!

BUT, when I make this same request on Postman, I get the JSON response AND the cookie.

Any help would be greatly appreciated! Let me know if you need any more details/code.

CodePudding user response：

Thanks to Kris, I realized I was making the request from Flutter (Client) to an IP rather than the domain name localhost. Because setting a cookie is domain specific, I couldn't see the cookie set in the developer console.

Here is the updated code

static testMethod() async {
    try {
      dio.options.extra['withCredentials'] = true;
      var response = await dio.post('http://localhost:5000/test');
      print(response);
    } catch (e) {
      print(e);
    }
  }