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HTML5 <iframe> sandbox Attribute

HTML5 iframe Tag Reference HTML5 <iframe> tag

Example

An iframe with extra restrictions:

<iframe src="demo_iframe_sandbox.htm" sandbox=""></iframe>

Try it yourself »
(more examples at the bottom of this page)

Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The sandbox attribute is currently supported in Chrome and Safari.

Definition and Usage

If specified as an empty string (sandbox=""), the sandbox attribute enables a set of extra restrictions for the content in the inline frame.

The value of the sandbox attribute can either be an empty string (all the restrictions is applied), or a space-separated list of pre-defined values that will REMOVE particular restrictions.

Differences Between HTML 4.01 and HTML5

The sandbox attribute is new in HTML5.

Syntax

<iframe sandbox="value">

Attribute Values

Value Description
"" Applies all restrictions below
allow-same-origin Allows the iframe content to be treated as being from the same origin as the containing document
allow-top-navigation Allows the iframe content to navigate (load) content from the containing document
allow-forms Allows form submission
allow-scripts Allows script execution

Examples

Try it Yourself - Examples

An <iframe> sandbox allowing form submission
Enable a set of extra restrictions, but allow form submission.

An <iframe> sandbox allowing scripts and access to server content
Enable a set of extra restrictions, but allow scripts and access to server content.

HTML5 iframe Tag Reference HTML5 <iframe> tag
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