HTMLAnchorElement: origin property

The HTMLAnchorElement.origin read-only property is a string containing the Unicode serialization of the origin of the represented URL.

That is:

• for URL using the http or https, the scheme followed by '://', followed by the domain, followed by ':', followed by the port (the default port, 80 and 443 respectively, if explicitly specified);
• for URL using file: scheme, the value is browser dependent;
• for URL using the blob: scheme, the origin of the URL following blob:. E.g "blob:https://mozilla.org" will have "https://mozilla.org".

// An <a id="myAnchor" href="https://developer.mozilla.org/en-US/HTMLAnchorElement"> element is in the document
const anchor = document.getElementById("myAnchor");
anchor.origin; // returns 'https://developer.mozilla.org'