Part of the URI standard: return a string consisting of the reference's path component appended to all but the last segment of the base URI's path

Part of the URI standard: return a string consisting of the reference's path component appended to all but the last segment of the base URI's path (i.e., excluding any characters after the right-most "/" in the base URI path, or excluding the entire base URI path if it does not contain any "/" characters https://datatracker.ietf.org/doc/html/rfc3986#section-5.2.3 https://datatracker.ietf.org/doc/html/rfc3986#section-5.2.3