fix validatio for other auhtor identifiers
fix validatio for other auhtor identifiers

changed to follow the same approach as with ISNIs

redirect and CORS policy make the fetch call to fail.
https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS/Errors/CORSExternalRedirectNotAllowed

addresses https://github.com/datacite/bracco/issues/227

datacite/bracco,datacite/bracco,datacite/bracco,datacite/bracco