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 explicitely 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

string = URLObject.origin;

Value

A USVString.

Examples

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

Specifications

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

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
originChrome Full support 52Edge Full support 12Firefox Full support 26
Full support 26
No support 26 — 49
Notes
Notes Results for URL using the blob scheme incorrectly returned null.
IE ? Opera Full support YesSafari Full support 10WebView Android Full support 52Chrome Android Full support 52Firefox Android Full support 26
Full support 26
No support 26 — 49
Notes
Notes Results for URL using the blob scheme incorrectly returned null.
Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
See implementation notes.
See implementation notes.

See also

  • The URL interface

Document Tags and Contributors

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