jQuery post 到 Asp.Net MVC 的错误请求，仅限某些网络

Question

我已部署到 QA 服务器，该解决方案对我来说运行良好，但在一些限制性更强的网络上，它的行为会有所不同。代码如下：

function RegisterSubmit() {
    ShowSpinner();
    jQuery.post("@Url.Action("Register", "Home")", jQuery('form#register-form').serialize(),
    function (data) { }).done(function (successData) {
        // handle success
    }).fail(function (xhr, textStatus, errorThrown) {
        ShowError('error-message-register', errorThrown);
        grecaptcha.reset();
        HideSpinner();
    });
}

这成功调用了控制器，该控制器将日志写入数据库，但出现异常，我可以看到这一切正常。它似乎失败的地方是错误是如何返回给浏览器的。我正在使用以下，通常可以正常工作：

[AllowAnonymous]
[HttpPost]
public ActionResult Register(RegisterViewModel model, string returnUrl)
{
    try
    {
        model.Validate();
        RecaptchaValidator.Validate(TenantId, Request);

        // happy path
    }
    catch (Exception ex)
    {
        LogException(ex);
        return ThrowJsonError(ex);
    }
}

它使用以下内容：

public JsonResult ThrowJsonError(string message)
{
    Response.StatusCode = (int) System.Net.HttpStatusCode.BadRequest;
    Response.StatusDescription = message;
    return Json(new {Message = message}, JsonRequestBehavior.AllowGet);
}

仅在这一网络上，它不显示错误消息，而是显示“错误请求”。有什么想法/解决方案吗？

更新 附带说明一下，此代码的成功案例运行良好，因此到达服务器没有问题。只有当我们在控制器中抛出错误并希望它在视图中被捕获并显示在浏览器中时，才会出现此问题。

Answer 1

检查此示例代码

$.ajax({ //actually approve or reject the promotion
url: @Url.Content("~/Home/Index"),
type: "POST",
data: JSON.stringify({ 
    // Those property names must match the property names of your PromotionDecision  view model
    promotionId: data.PromotionId, 
    userId: data.UserId, 
    reasonText: data.ReasonText
}),
contentType: "application/json; charset=utf-8",
success: function (data) {
    if (indicator == 'A') {
        alert('Promotion approved successfully!');
    }
    else {
        alert('Promotion rejected successfully.');
    }

    var homelink = '@Url.Action("Index","Home")';
    window.location.href = (homelink);

    returndata = data;
},
error: function (xhRequest, ErrorText, thrownError) {
    alert("Failed to process promotion correctly, please try again");
    console.log('xhRequest: ' + xhRequest + "\n");
    console.log('ErrorText: ' + ErrorText + "\n");
    console.log('thrownError: ' + thrownError + "\n");
}

});

来自Continually receiving 400 (Bad Request) on jquery ajax post to MVC controller