A string.

Executed from inside window scope, the following snippet will log the document's global scope's origin to the console.

console.log(window.origin); // On this page returns 'https://developer.mozilla.org'

If the origin is not a scheme/host/port tuple (say you are trying to run it locally, i.e., viafile:// URL),origin will return the string"null".

• WorkerGlobalScope.origin
• origin glossary term