javascript - How to get all html string from iframe? - Stack Overflow

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Assume i have iframe contain sample.html

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <link rel="import" href="sample.html">
</head>

<body>
  <p>top</p>
  <iframe src="sample.html" frameborder="0" id="myframe"></iframe>
  <p>bottom</p>
  <textarea cols="30" rows="10"></textarea>
</body>

</html>

I want to get all content include <!DOCTYPE html> ...</html>. I try to search arround the web but what i found only get content from body using

var cont = document.getElementById('myframe').contentWindow.document;
console.log(cont.body);

I don't want to use AJAX to get content file. How to get ALL content from iframe include html tag?

Assume i have iframe contain sample.html

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <link rel="import" href="sample.html">
</head>

<body>
  <p>top</p>
  <iframe src="sample.html" frameborder="0" id="myframe"></iframe>
  <p>bottom</p>
  <textarea cols="30" rows="10"></textarea>
</body>

</html>

I want to get all content include <!DOCTYPE html> ...</html>. I try to search arround the web but what i found only get content from body using

var cont = document.getElementById('myframe').contentWindow.document;
console.log(cont.body);

I don't want to use AJAX to get content file. How to get ALL content from iframe include html tag?

Share Improve this question asked Oct 15, 2017 at 11:00 Aep Saepudin 1722 gold badges5 silver badges14 bronze badges

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3 Answers 3

Sorted by: Reset to default 5

Try accessing cont.documentElement.innerHTML to get the contents of <html> tag.

If you want also the <html> tag, use cont.documentElement.outerHTML.

To get the doctype information, try using cont.doctype.

var cont = document.getElementById('myframe').contentWindow.document;
console.log(cont.documentElement.outerHTML, cont.doctype);

You could also use XMLSerializer if its supported in the browser:

console.log(new XMLSerializer().serializeToString(cont));

try this:

Using document.doctype to get the document doctype

Using document.getElementsByTagName("*"); to get most of the html

https://jsfiddle/4hhf6nLm/

following line will retrieve inner html of iframe

document.getElementById('myframe').contentWindow.document.body.innerHTML

Check this answer for more information

转载请注明原文地址:http://conceptsofalgorithm.com/Algorithm/1744759209a265286.html

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