URL.origin

The origin read-only property of the URL interface returns a USVString containing the Unicode serialization of the origin of the represented URL.

The exact structure varies depending on the type of URL:

For http or https URLs, 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 file: URLs, the value is browser dependant.
for blob: URLs, the origin of the URL following blob: will be used, e.g "blob:https://mozilla.org" will be returned as "https://mozilla.org".

Note: This feature is available in Web Workers

Syntax

const originString = url.origin

Value

A USVString.

Examples

const url = new URL("blob:https://mozilla.org:443/")
console.log(url.origin); // Logs 'https://mozilla.org'

Specifications

Specification
URL Standard (URL) # dom-url-origin

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`origin`	32	12	26 26-49 Results for `URL` using the `blob` scheme incorrectly returned `null`.	No	19	10	≤37	32	26 26-49 Results for `URL` using the `blob` scheme incorrectly returned `null`.	19	Yes	6.0