This is a hint a website may provide to a user agent to display a video content within the element's playback area.


It allows embedders to provide a media experience where a playing a video automatically enters fullscreen. This attribute will offer an opt-out for websites. Safari on iPhone already supports this.



Established standard

Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for desktop release 75
  • Chrome for Android release 75
  • Android WebView release 75

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • No signal
  • No signal
  • Shipped/Shipping
  • No signals


Last updated on 2021-05-05