No way seems to get an error in error case

[SmolinsCo]

I have following code based on official sample of this project:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using System.IO;
using System.Threading;
using Task = System.Threading.Tasks.Task;
using System.Windows.Forms;

using MasterDevs.ChromeDevTools;
using DOM = MasterDevs.ChromeDevTools.Protocol.Chrome.DOM;
using Emulation = MasterDevs.ChromeDevTools.Protocol.Chrome.Emulation;
using Page = MasterDevs.ChromeDevTools.Protocol.Chrome.Page;

namespace FreelanceRuBot
{
    class Program
    {
        const int ViewPortWidth = 1440;
        const int ViewPortHeight = 900;

        static void Main(string[] args)
        {
            Task.Run(async () =>
            {
                var getHTMLDone = new ManualResetEventSlim();

                var chromeProcessFactory = new ChromeProcessFactory(new StubbornDirectoryCleaner());
                using (var chromeProcess = chromeProcessFactory.Create(9222, true))
                {
                    var sessionInfo = (await chromeProcess.GetSessionInfo()).LastOrDefault();
                    var chromeSessionFactory = new ChromeSessionFactory();
                    var chromeSession = chromeSessionFactory.Create(sessionInfo.WebSocketDebuggerUrl);

                    await chromeSession.SendAsync(new Emulation.SetVisibleSizeCommand
                    {
                        Width = ViewPortWidth,
                        Height = ViewPortHeight
                    });

                    var navigateResponse = await chromeSession.SendAsync(new Page.NavigateCommand
                    {
                        Url = "http://www.google.com"
                    });

                    var pageEnableResult = await chromeSession.SendAsync<Page.EnableCommand>();

                    chromeSession.Subscribe<Page.LoadEventFiredEvent>(loadEventFired =>
                    {
                        Task.Run(async () =>
                        {
                            var doc = (await chromeSession.SendAsync(new DOM.GetDocumentCommand())).Result.Root;
                                
                            var res = chromeSession.SendAsync(new DOM.GetOuterHTMLCommand());

                            getHTMLDone.Set();
                        });
                    });

                    getHTMLDone.Wait();

                    Console.WriteLine("Exiting ..");
                }
            }).Wait();
        }
    }
}

Some error occurs in this line;

var res = chromeSession.SendAsync(new DOM.GetOuterHTMLCommand());

But it is not issue about an error. It is issue about how to handle such errors.

This line hasn't any result processing, but anyway it crashes with: System.InvalidCastException. Place is ChromeSession.cs, CastTaskResult method, 94 line.
Because it can't cast "MasterDevs.ChromeDevTools.ErrorResponse" to "MasterDevs.ChromeDevTools.CommandResponse`.

I want to obtain ErrorResponse in such case. But it looks like there are no normal way to obtain it.

P. S. I could contribute if you will merge :)