HTML DOM Frame/IFrame contentDocument Property

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# Frame/IFrame contentDocument Property

Frame/IFrame Object

## Definition and Usage

The contentDocument property returns the Document object generated by a frame or iframe element.

This property can be used in the host window to access the Document object that belongs to a frame or iframe element.

Note: Because of security reasons, the contents of a document can be accessed from another document only if the two documents are located in the same domain.

## Syntax

frameObject.contentDocument
or
iframeObject.contentDocument

## Browser Support

The contentDocument property is supported in all major browsers.

Note: Internet Explorer 8 (and higher) supports the contentDocument property only if a !DOCTYPE is specified. For earlier versions of IE, use the contentWindow property.

## Example

Crossbrowser example on how to change the background color of the document contained in an iframe:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<script>
function changeStyle()
{
var x=document.getElementById("myframe");
var y=(x.contentWindow || x.contentDocument);
if (y.document)y=y.document;
y.body.style.backgroundColor="#0000ff";
}
</script>
</head>
<body>
<iframe id="myframe" src="demo_iframe.htm">
<p>Your browser does not support iframes.</p>
</iframe>
<br><br>
<input type="button" onclick="changeStyle()" value="Change background color">
</body>
</html>
Try it yourself »

Frame/IFrame Object

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