客户端证书始终为空

我已经安装了一个证书Personal也受信任的根证书颁发机构

已尝试使用这段代码发布到端点：

public void Post()
    {
        try
        {
            var clientCert = LoadFromStore("MyThumbprint");
            var requestHandler = new WebRequestHandler();

            requestHandler.ClientCertificates.Add(clientCert);

            var client = new HttpClient(requestHandler)
            {
                BaseAddress = new Uri("https://localhost:44430/")
            };

            var response = client.GetAsync("api/test").Result;
            response.EnsureSuccessStatusCode();

            string responseContent = response.Content.ReadAsStringAsync().Result;
            Console.WriteLine(responseContent);
        }
        catch (Exception ex)
        {
            Console.WriteLine("Exception while executing the test code: {0}", ex.Message);
        }
    }

经检查，.ClientCertificate属性始终为空。

 [Route("api/[controller]")]
public class TestController : Controller
{
    [HttpGet]
    public ActionResult<IEnumerable<string>> Get()
    {
        var clientCertInRequest = Request.HttpContext.Connection.ClientCertificate;
        if (clientCertInRequest != null) return Ok();

        return BadRequest("No certificate found");
    }

}

想知道是否有人以前遇到过这个问题，或者知道如何将证书发布到 webapi 端点并能够检索和验证？

非常感谢

.Net 6:

builder.WebHost.ConfigureKestrel(kestrel =>
{
    kestrel.ConfigureHttpsDefaults(https => https.ClientCertificateMode = ClientCertificateMode.AllowCertificate);
});

旧版本：

return Host.CreateDefaultBuilder(args)
        .ConfigureWebHostDefaults(webBuilder =>
        {
            webBuilder.UseStartup<Startup>();
            webBuilder.ConfigureKestrel(o =>
            {
                o.ConfigureHttpsDefaults(o => 
                o.ClientCertificateMode = 
                ClientCertificateMode.AllowCertificate);
            });
        });