我正在用WinForms CefSharp发送带有此代码的发帖请求

public void Navigate(this IWebBrowser browser,string url,byte[] postDataBytes,string contentType)
{
    IFrame frame = browser.GetMainFrame();
    IRequest request = frame.CreateRequest();

    request.Url = url;
    request.Method = "POST";

    request.InitializePostData();
    var element = request.PostData.CreatePostDataElement();
    element.Bytes = postDataBytes;
    request.PostData.AddElement(element);

    NameValueCollection headers = new NameValueCollection();
    headers.Add("Content-Type",contentType );
    request.Headers = headers;

    frame.LoadRequest(request);
}

执行后，我将以表格形式获取响应数据。如何预防。只需将没有加载数据的请求发送到浏览器。