duplicate parameters

http://trac.tools.ietf.org/wg/httpbis/trac/wiki/HeaderFieldTypes

That discussion looks old, but this issue came up for me recently.

It seems some clients errantly send multiple "boundary" parameters in
multipart requests. Apache Commons and Rails can deal with this by choosing
the last boundary value, while Netty doesn't currently handle it.

The WG might want to address this since it seems to be required for
interoperability.

- Rob