HTML DOM IFrame width Property

HTML | DOM IFrame sandbox Property

Last Updated : 05 May, 2025

The IFrame sandbox Property in HTML DOM is used for returning the value of the sandbox attribute in an iframe element. When the sandbox attribute exists, and it will:

treat the content as being from a singular origin
It blocks form submission
It blocks script execution
It disables APIs
It also preventing links from targeting other browsing contexts
It stop the content to navigate its top-level browsing context
block automatically triggered features (such as automatically playing a video or automatically focusing a form control)

The value of the sandbox attribute will either be simply sandboxed (then all restrictions are applied) or a space-separated list of pre-defined values which will take away the actual restrictions. Syntax:

iframeObject.sandbox

Return Value: It returns string Value Which representing the value of the sandbox attribute.

Now let's understand this with the help of an example:

html

<!DOCTYPE html>
<html>
    <head>
        <title>
            HTML Iframe sandbox Attribute
        </title>
    </head>

    <body>
        <h1>GeeksforGeeks</h1>

        <h2>HTML IFrame sandbox Attribute</h2>

        <br />
        <br />

        <iframe
            id="GFGFrame"
            src="https://www.geeksforgeeks.org/community/"
            width="400"
            height="200"
            sandbox
        >
        </iframe>
    </body>
</html>

Temporary Note on Output : On Run, The iframe may show a "Refuse to Connect" error due to security restrictions from the GeeksforGeeks site, which prevents embedding. To see the output, replace the src URL with one that allows iframe embedding, such as "https://www.example.com".

Supported Browsers: The browsers supported by HTML DOM IFrame sandbox Property are listed below:

Google Chrome 4.0 and above
Edge 12.0 and above
Firefox 17.0 and above
Internet Explorer 10.0 and above
Opera 15.0 and above
Safari 5.0 and above

HTML DOM IFrame width Property

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