GoogleWebAuthorizationBroker.AuthorizeAsync Hang when user closes browser

What steps will reproduce the problem?
1. Use GoogleWebAuthorizationBroker.AuthorizeAsync to gain user credentials
2. User nether accepts nor rejects permission, but closes browser window/tab
3. Works on Calendar.VB.ConsoleApp, haven't tried others.

What is the expected output? What do you see instead?
An exception to be thrown which could be caught.
Program stays in loop w/o exit, even with await clause.

What version of the product are you using?
What is your operating system? Win7 and Win8
What is your IDE? VS2013
What is the .NET framework version? 4.0 and 4.5

Please provide any additional information below.
Others from SE with same issue:

http://stackoverflow.com/questions/24659654/google-drive-catch-events-during-aut
hentication
http://stackoverflow.com/questions/22995218/google-drive-oauth-connect-probem  
[Note, setting Await still wasn't able to wrap error]
http://stackoverflow.com/questions/23475498/oauth-lockup-google

Original issue reported on code.google.com by [e-mail] on 19 Nov 2014 at 2:43

[jhavikas84]

We can throw timeout exception using thread when the thread meets the timeout value, below is the code and it serves my purpose. Here i have set the timeout value to 2 mins (120,000 milliseconds).

using (MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(SystemDataUtils.ConvertToJson<GDriveConfiguration>()))) { UserCredential cred = null;

            var thread = new Thread(() =>
                                        cred = (GoogleWebAuthorizationBroker.AuthorizeAsync(
                                            GoogleClientSecrets.Load(stream).Secrets,
                                            Scopes,
                                            userName,
                                            CancellationToken.None,
                                            new FileDataStore(FileDataStore)).Result)
            )
            { IsBackground = false };

            thread.Start();
            if (!thread.Join(120000))
            {
                throw new Exception("Timeout exception..!!!");
            }
            else
            {
                return cred;
            }
        }

[chrisdunelm]

It is not possible, in general, to detect when the user has closed the browser window/tab. For example, if the user is already running their default browser, then GoogleWebAuthorizationBroker opens a new tab, this is not running in the process started in LocalServerCodeReceiver. That new process terminates immediately.

However, currently the CancellationToken passed to GoogleWebAuthorizationBroker.AuthorizeAsync is not honoured whilst waiting for the auth response. #968 filed to fix this.