1. Beacon API

    Allows data to be sent asynchronously to a server with `navigator.sendBeacon`, even after a page was closed. Useful for posting analytics data the moment a user was finished using the page.

  2. htmldialogelement api: closedby

  3. mediakeysession api: closed

  4. readablestreambyobreader api: closed

  5. readablestreamdefaultreader api: closed

  6. rtcstatsreport api: `peer-connection` stats: `datachannelsclosed` in 'peer-connection' stats

  7. websocketstream api: closed

  8. webtransport api: closed

  9. window api: closed

  10. writablestreamdefaultwriter api: closed

  11. css property: list-style-type: disclosure-closed

  12. html element: dialog: closedby