当webapi返回406时，ASP.NET核心HttpClient请求返回200

using System;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;

public class Program
{
    public static async Task Main(string[] args)
    {
        using (HttpClient client = new HttpClient())
        {
            client.DefaultRequestHeaders.Accept.Clear();
            client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

            HttpResponseMessage response = await client.GetAsync("https://api.example.com/resource");
            if (response.IsSuccessStatusCode)
            {
                // 处理成功响应
                string responseBody = await response.Content.ReadAsStringAsync();
                Console.WriteLine(responseBody);
            }
            else
            {
                // 处理错误响应
                Console.WriteLine($"请求失败：{response.StatusCode}");
            }
        }
    }
}

[ApiController]
[Route("api/[controller]")]
public class MyController : ControllerBase
{
    [HttpGet]
    [Produces("application/json", "application/xml")]
    public IActionResult Get()
    {
        // 返回资源
    }
}