This issue was originally filed by j.m.sloc...@gmail.com

Using Dart VM version: 1.1.1 (Wed Jan 15 04:11:49 2014) on "linux_x64"
The following dart program starts a secure HTTP server and waits for a websocket connection

import 'dart:io';

void main(List<String> args){
  String password = new File('pwdfile').readAsStringSync().trim();

  SecureSocket.initialize(database: "./",
                          password: password);

  HttpServer.bindSecure(InternetAddress.ANY_IP_V4, 4443,
      certificateName: "CN=devcert")
    .then((HttpServer server) {
      print("Secure server listening on 4443...");
      server.serverHeader = "Secure WebSocket server";

      server.listen((HttpRequest request) {
        if (request.headers.value(HttpHeaders.UPGRADE) == "websocket"){
          WebSocketTransformer.upgrade(request).then(handleWebSocket);
        }
        else {
          request.response.statusCode = HttpStatus.FORBIDDEN;
          request.response.reasonPhrase = "WebSocket connections only";
          request.response.close();
        }
      });
    });
}

void handleWebSocket(WebSocket socket){
  print("Secure client connected!");
  socket.listen((String s) {
    print('Client sent: $s');
    socket.add('echo: $s');
  },
  onDone: () {
    print('Client disconnected');
  });
}

The following program is a client that can connect to websockets.

import 'dart:io';

WebSocket ws;

void main(List<String> args){
  if (args.length < 1){
    print('Please specify a server URI. ex ws://example.org');
    exit(1);
  }

  String server = args[0];

  //Open the websocket and attach the callbacks
  WebSocket.connect(server).then((WebSocket socket) {
    ws = socket;
    ws.listen(onMessage, onDone: connectionClosed);
  });

  //Attach to stdin to read from the keyboard
  stdin.listen(onInput);
}

void onMessage(String message){
  print(message);
}

void connectionClosed() {
  print('Connection to server closed');
}

void onInput(List<int> input){
  String message = new String.fromCharCodes(input).trim();

  //Exit gracefully if the user types 'quit'
  if (message == 'quit'){
    ws.close();
    exit(0);
  }

  ws.add(message);
}

What is the expected output? What do you see instead?

When I run this server using a self signed cert and try to connect with a client I get the following exception

$ dart secureWebSocketClient.dart wss://localhost:4443
Uncaught Error: HandshakeException: Handshake error in client (OS Error: Issuer certificate is invalid., errno = -8156)
Unhandled exception:
HandshakeException: Handshake error in client (OS Error: Issuer certificate is invalid., errno = -8156)

­0 _rootHandleUncaughtError.<anonymous closure>.<anonymous closure> (dart:async/zone.dart:677)

­1 _asyncRunCallback (dart:async/schedule_microtask.dart:18)

­2 _asyncRunCallback (dart:async/schedule_microtask.dart:21)

­3 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:119)

However there is no way of indicating to the WebSocket class to ignore certificate errors.

The server works if I use a "plain" HTTP server, but not a secure server. It would appear that the WebSocket class should have an onBadCertificate(X509Certificate) callback like the SecureSocket classes.