Register in order two chained Exception handlers

Program.cs

using DemoAspNetCore8.ErrorHandling;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddExceptionHandler<TimeOutExceptionHandler>();
builder.Services.AddExceptionHandler<DefaultExceptionHandler>();

var app = builder.Build();

app.UseExceptionHandler(opt => { });

app.MapGet("/Exception", () => {

    throw new NotImplementedException();
});

app.MapGet("/Timeout", () => {

    throw new TimeoutException();
});

app.Run();