$ curl -I https://en.wikipedia.org/w/COPYING
HTTP/1.1 200 OK
[snip]
Content-Type: application/octet-stream
This results in people attempting to view the MediaWiki license getting a save file promt. Should be text/plain instead.
Version: unspecified
Severity: normal
URL: https://en.wikipedia.org/w/COPYING
See Also:
https://rt.wikimedia.org/Ticket/Display.html?id=6915