src/view-source/view-source-3.html

<!DOCTYPE html>
<html lang="en">
<head>
<title>&lt;iframe src="view-source:"></title>
</head>
<body>
  <p><iframe src="view-source:http://suika.fam.cx/news" name="frame1"
      style="width: 80%; height: 10em"
      onload="
        document.getElementById ('result').textContent = this.contentDocument.documentElement.textContent;
      ">NOIFRAME</iframe></p>

  <pre><code id="result"></code></pre>
</body>
</html>
1	<!DOCTYPE html>
2	<html lang="en">
3	<head>
4	<title><iframe src="view-source:"></title>
5	</head>
6	<body>
7	<p><iframe src="view-source:http://suika.fam.cx/news" name="frame1"
8	style="width: 80%; height: 10em"
9	onload="
10	document.getElementById ('result').textContent = this.contentDocument.documentElement.textContent;
11	">NOIFRAME</iframe></p>
12
13	<pre><code id="result"></code></pre>
14	</body>
15	</html>