我有一个来自IFRAME的HTML DOM元素。我试图获取该IFRAME的内容，但每当我得到outerHTML时，它都会被截断。
以下是代码示例：
var htmlElm = frame.contents().children()[0];
console.log(htmlElm); //inspect this, i see the outerHTML as i would expect
console.log(htmlElm.outerHTML); //not what was in the chrome inspector,
//i get a truncated version
这是一个被截断的HTML示例，至少对我而言：
<!DOCTYPE html>
<html>
<head>
<title>Title</title>
<link href="https://example.com/stylesheet.css" rel="stylesheet">
<script type="text/javascript">
function test() {
window.alert('test');
}
</script>
</head>
<body>
<h1>Body</h1>
</body>
</html>