SignOut from OpenID/AzureAD using OWIN causes invalid redirect

Button with following handler supposed to logout from Azure AD authenticated application.

<dot:Button Click="{command: Logout()}" Text="Logout" />

public void Logout()
{
    this.Context.GetOwinContext().Authentication.SignOut(
       OpenIdConnectAuthenticationDefaults.AuthenticationType, CookieAuthenticationDefaults.AuthenticationType);
}

It causes error: DotVVM Debugger: Error XmlHttpRequest failed, maybe internet connection is lost or url is malformed

The redirect URL to (https://login.microsoftonline.com/xxx-xxx-xxx-xxx/oauth2/logout) seems to be sent (judging from the F12 console), but the redirect ends with error.

[tomasherceg]

The sample app is here: https://github.com/riganti/dotvvm-samples-azuread-auth

I am closing the issue. Feel free to reopen this one, or create another one if you hit into any issues.

[tomasherceg]

It is strange - I have received an e-mail notification about a comment, but I cannot see it here.

Here is the comment:

I have looked at the sample and tried it out. I have run into a an issue, that this.Context is being Null in the ViewModel. I just modified the DefaultViewModel constructor, like this

    public DefaultViewModel()
    {
        if (Context != null)
            Title = "Test";
    }

am I missing something, or the OpenIDAuthentication in the OWIN pipe line causes some problems?

My reply:

The Context is always null in the constructor. It is set in the framework right after the constructor is called. Override the Init method and set the Title property there.