A URL supplied either as a parsed URL instance or as a string, covering the two shapes a reference
arrives in without forcing a conversion on the way in. Strings are unconstrained, absolute or relative and not
necessarily well-formed, so parsing and resolution against a base stay with whoever consumes the reference.
URL reference.
A URL supplied either as a parsed URL instance or as a string, covering the two shapes a reference arrives in without forcing a conversion on the way in. Strings are unconstrained, absolute or relative and not necessarily well-formed, so parsing and resolution against a base stay with whoever consumes the reference.