1 Allows the app to use the
<a href=
"app.window.html">app.window
</a> fullscreen state or the
<a href=
"https://dvcs.w3.org/hg/fullscreen/raw-file/tip/Overview.html">HTML fullscreen API
</a>. See
<a href=
"api_other.html">Other APIs
</a> for behavior differences.