为什么在获取POST请求后RedirectToAction不返回新的View（）？

Question

我正在使用Asp.Net Core 2.2

我不明白为什么在Fetch POST调用之后，我的POST IActionResult不重定向到另一个操作及其视图？

我在JS中的提取：

window.onload = function () {
        var requestToken = document.getElementsByName("__RequestVerificationToken")[0].value
        fetch('http://localhost:53801/User/Checkout', {
            method: 'post',
            headers: {
                "X-ANTI-FORGERY-TOKEN": requestToken,
                "Content-Type": "application/json",
                "Accept": "application/json"
            },
            body: JSON.stringify({
                token: 'sometoken',
                payerID: 'someid',
                amount: price,
                users: usersQty,
                years: yearsQty
            })
        }).catch(function (err) {
            console.log(`error: ${err}`);
            });
    }

我的POST操作：

[HttpPost]
        [Authorize]
        public async Task<IActionResult> Checkout([FromBody] TransactionCompletedModel transaction)
        {
            AppUser user = await _userManager.GetUserAsync(User);
            if (user != null)
            {
                if (user.PremiumExpiring == null || user.PremiumExpiring < DateTime.UtcNow)
                {
                    user.PremiumExpiring = DateTime.UtcNow.AddYears(1); //if not yet have full access
                }
                else
                {
                    user.PremiumExpiring = user.PremiumExpiring.AddYears(1); //if already have full access
                }

                await _userManager.UpdateAsync(user);
            }

            return RedirectToAction(nameof(TransactionCompleted));
        }

和只应返回新View的方法，但没有：

[Authorize]
        public IActionResult TransactionCompleted()
        {

            return View();
        }

在执行Fetch调用后，我在浏览器控制台中收到：

XHR GEThttp://localhost:53801/User/TransactionCompleted[HTTP / 1.1 200 OK 724ms]

据我所知，我的RedirectToAction没什么问题，所以为什么public IActionResult TransactionCompleted()不返回/重新加载新视图，而只是停留在执行Fetch调用的旧视图上？

Answer 1

[

[HttpPost]
        [Authorize]
        public async Task<IActionResult> Checkout([FromBody] TransactionCompletedModel transaction)
        {
            //other rows without change

            return Ok("TransactionCompleted?token=" + transaction.Token);
        }

现在我的Fetch API调用从POST调用获取对Checkout的响应，并将其用于重定向：

var requestToken = document.getElementsByName("__RequestVerificationToken")[0].value
        fetch('http://localhost:53801/User/Checkout', {
            method: 'post',
            headers: {
                "X-ANTI-FORGERY-TOKEN": requestToken,
                "Content-Type": "application/json",
                "Accept": "application/json"
            },
            body: JSON.stringify({
                token: 'sometoken',
                payerID: 'someid',
                amount: price,
                users: usersQty,
                years: yearsQty
            })
        })
            .then((response) => { return response.json(); })
            .then((result) => { window.location = result })
            .catch(function (err) {
            console.log(`error: ${err}`);
            });