Rest MVC4 WebApi中的DefaultCredentials选项和HTTPS？

我对DefaultCredentials选项和HTTPS有问题。如果我使用HTTP协议，一切正常-ntlm授权正常，但是如果我在Thread.CurrentPrincipal中的webservice端将HTTP更改为HTTPS，则我什么都没有（空字符串和IsAuthenticate on false值）。 你有类似的问题吗

我的Ntlm配置：

internal class NtlmSelfHostConfiguration : HttpSelfHostConfiguration
{
    public NtlmSelfHostConfiguration(string baseAddress) : base(baseAddress) { }

    public NtlmSelfHostConfiguration(Uri baseAddress) : base(baseAddress) { }

    protected override BindingParameterCollection OnConfigureBinding(HttpBinding httpBinding)
    {
        httpBinding.Security.Mode = HttpBindingSecurityMode.Transport;
        httpBinding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Ntlm;
        return base.OnConfigureBinding(httpBinding);
    }
}

HttpClient创建

var handler = new HttpClientHandler() { UseDefaultCredentials = true };
httpClient = new HttpClient(handler);

用户密码基本身份验证工作正常，因此证书没有问题