location uri, ucs and the http scheme definition.

Hi,
	trying to determine the correct method to encode unicode characters
into URI's in the Location: header....

std66 says that *new* URI Schemes should allow require UCS characters to
be encoded as utf8, and then those that fall outside the unreserved set
to be percent escaped.

The http:// scheme is as far as I can determine (maybe my google juice
is failing me) specified by rfc2616 which doesn't mention UCS at all -
it predate std66 by quite some time.

So: what is the correct encoding approach for non US-ASCII characters in
HTTP URI's in Location: ?

Rob

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