Case sensitivity and canonical urls

[Grant Monroe]

I'm working on implementing an identity server and I've run into a
slight problem. Our identity urls are of the form
http://example.com/user. I would like the user to be able to type in
example.com/user and example.com/User and have the consumer know that
these are the same identity url, because we treat them identically on
the server.
I noticed someone mentioned something about a <link
rel="openid.canonical" ... /> in another thread. Could this be a
useful case for such a link?

Grant Monroe