fetchLaterThe fetchLater() method requests a deferred fetch sent at an unknown time. The browser chooses a reliable time to send the request, ideally when the document is unloaded, and ignores the response. This API is useful for sending beacons to a server without expecting a particular response.fetchFetchlimitedhttps://fetch.spec.whatwg.org/#dom-window-fetchlaterhttps://developer.mozilla.org/docs/Web/API/FetchLaterResultapi.FetchLaterResultapi.FetchLaterResult.activatedapi.Window.fetchLaterhttp.headers.Permissions-Policy.deferred-fetchhttp.headers.Permissions-Policy.deferred-fetch-minimalhttps://nowyoucanuse.com/features--fetchlater.html