W3cubDocs

URL.origin

The URL.origin read-only property returns a USVString 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 explicitely specified);
for URL using file: scheme, the value is browser dependant;
for URL using the blob: scheme, the origin of the URL following blob:. E.g "blob:https://mozilla.org" will have "https://mozilla.org".

Note: This feature is available in Web Workers.

string = URLObject.origin;

var result = new URL("blob:https://mozilla.org:443/").origin;
// Returns:'https://developer.mozilla.org:443'

Specification	Status	Comment
URL The definition of 'URL.origin' in that specification.	Living Standard	Initial definition.

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	52	12 12 Defined in another interface but available to use from `URL`.	26 26 26 — 44 This property was on the `URLUtils` mixin. It has been moved either to the `HTMLHyperlinkElementUtils` mixin, or directly on the interface. 26 — 49 Results for `URL` using the `blob` scheme incorrectly returned `null`.	?	Yes Yes Defined in another interface but available to use from `URL`.	10 10 Defined in another interface but available to use from `URL`.

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	52	52	12 12 Defined in another interface but available to use from `URL`.	26 26 26 — 44 This property was on the `URLUtils` mixin. It has been moved either to the `HTMLHyperlinkElementUtils` mixin, or directly on the interface. 26 — 49 Results for `URL` using the `blob` scheme incorrectly returned `null`.	Yes Yes Defined in another interface but available to use from `URL`.	Yes Yes Defined in another interface but available to use from `URL`.	?