Support using Windows authentication (instead of JWT)

[ramiabughazaleh]

Hi.

I have a SignalR client configured with UseDefaultCredentials:

var hubConnection = new HubConnectionBuilder()
   .WithUrl(newHubUri, options =>
   {
       options.UseDefaultCredentials = true;
   })
   .Build();

The SignalR hub server is configured to use Windows authentication:

    // other startup code

    services.AddAuthentication(NegotiateDefaults.AuthenticationScheme)
        .AddNegotiate();

    // other startup code

    app.UseAuthentication();
    app.UseAuthorization();

    app.MapHub<MyHub>("/my-hub");

    app.UseSignalRHubSpecification();
    app.UseSignalRHubDevelopmentUI();

    await app.RunAsync();

The SignalR hub is also decorated with [Authorize].

When I use my client to call the SignalR hub, the SignalR hub can successfully retrieve the WindowsIdentity:

    var httpContext = this.Context.GetHttpContext();

    var windowsIdentity = (WindowsIdentity)httpContext.User.Identity;

However, TypedSignalR.Client.DevTools does not seem to support Windows authentication.

The UI correctly detects authorization is required.

However, it requires a JWT.

I expected to be able to use Windows authentication without having to supply a JWT.

Thank you.