Javascript 如何在GreaseMonky中使用隐藏的iframe连接到服务器

首先，我创建了一个隐藏帧，如下所示：

var oHiddenFrame = null;
if(oHiddenFrame == null){
  oHiddenFrame = document.createElement("iframe");
  oHiddenFrame.name = "hiddenFrame";
  oHiddenFrame.id = "hiddenFrame";
  oHiddenFrame.style.height = "0px";
  oHiddenFrame.style.width = "0px";
  oHiddenFrame.style.position = "absolute";
  oHiddenFrame.style.visbility = "hidden";
  document.body.appendChild(oHiddenFrame);
}

var fnLocation = function(){
    frames["hiddenFrame"].location.href = "http://meckmeck.cn";
}

var oButton = document.getElementById("mb_submit");
oButton.addEventListener("click", fnLocation, false);

然后，我向按钮添加一个事件，如下所示：

var oHiddenFrame = null;
if(oHiddenFrame == null){
  oHiddenFrame = document.createElement("iframe");
  oHiddenFrame.name = "hiddenFrame";
  oHiddenFrame.id = "hiddenFrame";
  oHiddenFrame.style.height = "0px";
  oHiddenFrame.style.width = "0px";
  oHiddenFrame.style.position = "absolute";
  oHiddenFrame.style.visbility = "hidden";
  document.body.appendChild(oHiddenFrame);
}

var fnLocation = function(){
    frames["hiddenFrame"].location.href = "http://meckmeck.cn";
}

var oButton = document.getElementById("mb_submit");
oButton.addEventListener("click", fnLocation, false);

单击该按钮时，出现了一个错误：

frames.hiddenFrame is undefined

---

没有所谓的

document.frames

。

名称

索引的帧数组是

窗口。frames

（也称为just

frames

）

0-iframes是如此老派，现在大多与恶意软件安装漏洞有关（尤其是在中文页面上）。改用XMLHttpRequest怎么样