/.well-known/void redirect not followed

[VladimirAlexiev]

http://sparqles.ai.wu.ac.at/endpoint?uri=http%3A%2F%2Fvocab.getty.edu%2Fsparql says:
VoID Description: HTTP Get /.well-known/void: RED (i.e. not found).

However, we return content through a redirect:

>curl -IL http://vocab.getty.edu/.well-known/void
HTTP/1.1 302 Found
Location: http://vocab.getty.edu/void.ttl
Access-Control-Allow-Origin: *
Server: GraphDB 6.0.7835, Forest 2.1.3, Sesame 2.7.8
Content-Length: 0
Date: Sat, 13 Feb 2016 17:02:09 GMT
Set-Cookie: BIGipServerForest=587573440.45165.0000; path=/

HTTP/1.1 200 OK
Content-Disposition: attachment; filename="void.ttl"
Access-Control-Allow-Origin: *
Server: GraphDB 6.0.7835, Forest 2.1.3, Sesame 2.7.8
Content-Type: text/turtle;charset=UTF-8
Content-Length: 220573
Date: Sat, 13 Feb 2016 17:02:09 GMT

Such redirect is in accordance with https://www.w3.org/TR/void/#well-known