[Bug] unknown_broker_error when click "Only used for Microsoft app" link. #5705
Description
Library version used
4.64.1
.NET version
.NET Franewirk 4.7.2
Scenario
PublicClient - desktop app
Is this a new or an existing app?
The app is in production, I haven't upgraded MSAL, but started seeing this issue
Issue description and reproduction steps
In a new machine which never login by MSAL.
During login process, click "Only used for Microsoft app" link, process interrupted and throw "unknown_broker_error".
After login failure, the same account cannot be successfully logged in for a period of time.
If this operation is performed on a machine that has already logged into the account, the probability of recurrence is low.
Relevant code snippets
_currentUserAccount = _currentUserAccount ?? (await otApp.GetAccountsAsync()).FirstOrDefault();
if (_currentUserAccount == null)
{
_currentUserAccount = Microsoft.Identity.Client.PublicClientApplication.OperatingSystemAccount;
}
try
{
if (!Controller.reLogin)
{
authResult = await otApp.AcquireTokenSilent(scopes, _currentUserAccount)
.ExecuteAsync();
}
}
catch (MsalUiRequiredException ex)
{
var cancelToken = new CancellationTokenSource();
cancelToken.CancelAfter(TimeSpan.FromMinutes(timeOut));
IntPtr browserHandle = FindWindow(null, info.appName);
try
{
authResult = await otApp.AcquireTokenInteractive(scopes)
.WithParentActivityOrWindow(browserHandle)
.WithPrompt(Microsoft.Identity.Client.Prompt.SelectAccount)
.ExecuteAsync(cancelToken.Token);
}
catch{}
}Expected behavior
Complete login normally.
Identity provider
Microsoft Entra ID (Work and School accounts and Personal Microsoft accounts)
Regression
No response
Solution and workarounds
No response