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<!--> <!DOCTYPE> <a> <abbr> <acronym> <address> <applet> <area> <article> <aside> <audio> <b> <base> <basefont> <bdi> <bdo> <big> <blockquote> <body> <br> <button> <canvas> <caption> <center> <cite> <code> <col> <colgroup> <command> <datalist> <dd> <del> <details> <dfn> <dialog> <dir> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <font> <footer> <form> <frame> <frameset> <head> <header> <hgroup> <h1> - <h6> <hr> <html> <i> <iframe> <img> <input> <ins> <kbd> <keygen> <label> <legend> <li> <link> <map> <mark> <menu> <meta> <meter> <nav> <noframes> <noscript> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <rp> <rt> <ruby> <s> <samp> <script> <section> <select> <small> <source> <span> <strike> <strong> <style> <sub> <summary> <sup> <table> <tbody> <td> <textarea> <tfoot> <th> <thead> <time> <title> <tr> <track> <tt> <u> <ul> <var> <video> <wbr>HTML <iframe> sandbox Attribute
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
The sandbox attribute is supported in Internet Explorer 10, Firefox, Chrome, and Safari.
Note: The sandbox attribute is not supported in Internet Explorer 9 and earlier versions, or in Opera.
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 |
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.
HTML <iframe> tag
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