The ExtendableMessageEvent interface of the ServiceWorker API represents the event object of a message event fired on a service worker (when a channel message is received on the ServiceWorkerGlobalScope from another context) — extends the lifetime of such events.
The HTMLAnchorElement.referrerPolicy property reflect the HTML referrerpolicy attribute of the <a> element defining which referrer is sent when fetching the resource.
The HTMLAreaElement.referrerPolicy property reflect the HTML referrerpolicy attribute of the <area> element defining which referrer is sent when fetching the resource.
The HTMLHyperlinkElementUtils.hash property returns a DOMString containing a '#' followed by the fragment identifier of the URL. The fragment is not percent-decoded.