.NETCore3.0中的CORS

我在.NET Core 3.0中开发了Web API，并通过React.js发布

在控制器中：

 [Route("api/[controller]")]
    [ApiController]
    public class AuthController : ControllerBase
    {
        [HttpPost, Route("login")]
        [EnableCors()]
        public async Task<IActionResult> Login([FromBody]User user)
        {
            //code implementation
            return Ok(new { Status = "OK" });
        }
    }

[Route("api/[controller]")]
    [ApiController]
    public class AuthController : ControllerBase
    {
        [HttpPost, Route("login")]
        [EnableCors()]        
        public async Task<IActionResult> Login(User user)
        {
            //code implementation
            return Ok(new { Status = "OK" });
        }
    }

在React.js中

const data = {
              UserName: "jack",
              Password: "def@123"
            };

            axios
              .post("https://localhost:44369/api/auth/login", {
                body: JSON.stringify(data),
                headers: {
                  "Content-Type": "application/json"
                }
              })

但我得到以下错误：

OPTIONS https://localhost:44369/api/auth/login 415

Access to XMLHttpRequest at 'https://localhost:44369/api/auth/login' from origin 'http://localhost:3000' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

---

PS：请知道，我尝试过各种其他方法，但不断出现一些或其他CORS错误。

我能够使其按如下方式工作：

在控制器中：

 [Route("api/[controller]")]
    [ApiController]
    public class AuthController : ControllerBase
    {
        [HttpPost, Route("login")]
        [EnableCors()]
        public async Task<IActionResult> Login([FromBody]User user)
        {
            //code implementation
            return Ok(new { Status = "OK" });
        }
    }

[Route("api/[controller]")]
    [ApiController]
    public class AuthController : ControllerBase
    {
        [HttpPost, Route("login")]
        [EnableCors()]        
        public async Task<IActionResult> Login(User user)
        {
            //code implementation
            return Ok(new { Status = "OK" });
        }
    }

在React.js中：

const data = {
              UserName: "jack",
              Password: "def@123"
            };


axios.post("https://localhost:44392/api/auth/login", data);