.NET/C#项目POST请求本地正常生产环境偶发400错误求助

我用.NET/C#开发的系统中，Leaflet地图上的机场标记被点击后会弹出带提交按钮的弹窗，点击按钮发送POST请求。该功能在本地测试100%正常，但生产环境仅约30%的请求能成功，偶尔会出现HTTP 400错误。服务器日志仅显示400错误，无额外详情；Chrome调试工具检查表单渲染未发现异常，怀疑是否为CORS问题？

前端表单代码 #

var circleMarker = L.circleMarker(latlng).addTo(map)
                .bindPopup(airports[i].ident + "</br>" +
                "<form method='post'>" +
                    "<input type='hidden' name='newloc' value='" + airports[i].airport_id + "' />" +
                    '@Html.AntiForgeryToken()' +
                    "<input type='submit' value='Move to Location' name='teleport'></input></form>");

后端处理代码 #

[HttpPost]
public async Task<IActionResult> OnPostAsync([Bind("id")] Job job, IFormCollection form, string selectjob, string teleport)
{
    var user = await _userManager.GetUserAsync(User);
    if (!string.IsNullOrEmpty(selectjob)) 
    {
        user.current_job = _context.Job.Where(j => j.id == job.id).First();
        await _userManager.UpdateAsync(user);
    }
    if (!string.IsNullOrEmpty(teleport))
    {
        user.Location = Int32.Parse(form["newloc"]);
        await _userManager.UpdateAsync(user);
    }
    return RedirectToPage("./Dashboard");
}

渲染后的表单HTML #

<form method="post">
<input type="hidden" name="newloc" value="17302">
<input name="__RequestVerificationToken" type="hidden" value="CfDJ8OoeUjhqYOBItKQtRChxbUpYINiLWHuPop-RRcULHf5ufX7TwaYDL-n0e616JwgKaFvoKBkMdpB-x8d0O1t4wRwtQwOmuQmXbrRzLhSHqXk7p89PcMqw6fRHMnOzSdeaPnLKqtJX2W2HIi27gdk4OPf1lvWrYf6BMo3vwj_BIfyTd47riV3bMVQqrhhgkfF--w">
<input type="submit" value="Move to Location" name="teleport">
</form>

完全无法理解为何是偶发错误而非每次失败！

失败请求的Payload #

newloc: 17302
__RequestVerificationToken: CfDJ8PWE3AZ4v3JCjpPeI7CNjot20zZi9doxfgnx-V4oajQTujWMypvxHwW7REtc_eL_dnxh6eqYdtbdhvckN-HZIgYtCoYbWsGJJ-_bl-tkfMIExLd-ylnmJfCTpAJxWTz1-QYy2Y2n8uy9rfFumDmVFYHvy2rZGCuQ_NDd-QABR2Ja3qoOPuV37HamjAurMG7GQw
teleport: Move to Location

开发者工具网络标签页截图 #

内容的提问来源于stack exchange，提问作者Zachary Lehmann