Web features explorer - X-Frame-Options

Web features explorer

The X-Frame-Options HTTP header limits where a document may be embedded in an iframe. The X-Frame-Options: SAMEORIGIN header disallows embedding in another origin. The X-Frame-Options: DENY header disallows embedding in any context, regardless of origin.

Browser support

Chrome 4 Released on 2010-01-25
Chrome Android 18 Released on 2012-06-27
Edge 12 Released on 2015-07-29
Firefox 4 Released on 2011-03-22
Firefox for Android 4 Released on 2011-03-29
Safari 4 Released on 2009-06-08
Safari on iOS 3.2 Released on 2010-04-03

MDN documentation

X-Frame-Options header

Specifications

HTML (#the-x-frame-options-header), from HTML Workstream (WHATWG).

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