I am using the following code for calling the controller method ans passing the parameters. The Method is getting called but values are coming null in controller method.

The same code is working fine in MVC 4 project, but in Asp.Net Core MVC it is not working.

var UserModel = {
  "FName": "Abc",
  "LName": "Pqr"
};
$.ajax({
  url: 'http://localhost:60600/Home/AddUser/',
  type: "POST",
  contentType: 'application/json; charset=utf-8',
  dataType: "json",
  data: JSON.stringify(UserModel),
  success: function () {
  }
});

public class HomeController : Controller
{
  // GET: /<controller>/
  public IActionResult Index()
  {
    return View();
  }

  // [HttpPost]
  // [AllowAnonymous]
  public IActionResult AddUser(UserModel model)
  {
    //  Add user model
    return Json("");
  }
}

public class UserModel
{
  public string FName { get; set; }
  public string LName { get; set; }
}