HTML5: How to enable an extra set of restrictions for the content in an iframe element?

Last update on February 09 2024 12:53:50 (UTC/GMT +8 hours)

Solution:

HTML Code:

<!DOCTYPE html><!-- Declaration specifying the document type -->
<html><!-- Opening tag for the root element of the HTML document -->
<head><!-- Opening tag for the document's header section -->
<meta charset="utf-8"><!-- Metadata tag specifying the character encoding of the document -->
<title>How to enable an extra set of restrictions for the content in an iframe element</title><!-- Title of the HTML document -->
</head><!-- Closing tag for the document's header section -->
<body><!-- Opening tag for the document's body section -->
<iframe src="https://www.w3resource.com/html-css-exercise/basic/solution/iframe-sandbox.html" sandbox><!-- Inline frame element displaying content from an external source with sandbox attribute enabled -->
</iframe><!-- Closing tag for the iframe element -->
</body><!-- Closing tag for the document's body section -->
</html><!-- Closing tag for the root element of the HTML document -->

Explanation:

This HTML code demonstrates how to enable an extra set of restrictions for the content within an iframe element using the sandbox attribute.
The <iframe> element is used to embed content from another HTML document or website. In this case, its src attribute specifies the URL of the external content.
The sandbox attribute is added to the iframe element without a value, which enables a default set of restrictions for the content within the iframe.
These restrictions include preventing scripts, forms, and other potentially harmful content from executing or affecting the parent document.
The content within the iframe will be rendered in a restricted environment, providing an extra layer of security against potential security vulnerabilities.

Live Demo :

See the Pen iframe-sandbox-answer by w3resource (@w3resource) on CodePen.

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