How widely supported is the iframe attribute "allowfullscreen"?

There’s a website dedicated to this attribute: http://www.allowfullscreen.com/. It's not very good, however.

While MSDN has only a rudimental entry, MDN provides a support table in their iframe doc:

  • FF: 18
  • Chrome: 17 (webkitallowfullscreen)
  • IE: no support
  • Safari: prefix support
  • Opera: supported

I've started discovering some of my own answers:

FireFox: Added support in v18 (January 8, 2013) - Source
Chrome: Added support in v27 (May 22, 2013) - Source
Safari: Added support in v7 (October 22, 2013) - Source
Internet Explorer: Added support in v11
Microsoft Edge: Supported

It seems to be difficult to find detailed release notes for the other three, unfortunately.

Tags:

Html

Iframe

W3C Validation

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