Origin
An origin is the scheme, host, and port tuple associated with a resource or request context.
- origins
- cors
- browsers
Definition
An origin is the tuple of scheme, host, and port associated with a resource or request context. Paths, queries, and fragments are not part of it.
https://app.example.invalid:8443
Expected result: changing the scheme, host, or effective port creates a different origin; changing only the path does not.
Why it matters
Browsers use origins for same-origin checks and CORS. Cookie scope and the same-site model use related but different boundaries, so “same origin” and “same site” are not interchangeable.