El Jueves, 22 de Octubre de 2009, Eric B. escribió: > "Jacques Caron" <[email protected]> wrote in > message news:[email protected]... > > > At 16:08 22/10/2009, Eric B. wrote: > >>1) There is no way to know the exact sequence of the headers. > > > > As already pointed out by Dave, the HTTP RFC explicitly says that > > header: a > > header: b > > > > is exactly equivalent to: > > header: a,b > > > > So the sequence is perfectly defined. > > Yes, but can we be sure that subsequent proxies/lbs will always append to > the final header in the list? I don't have Squid or anything else > installed, so am not sure of it, but am going on assumption that they > probably just grab the first XFF that they find. > > Any confirmation (or rejection) of this behaviour would be appreciated.
Since there is no a real standard for this, most probably most of the proxy do a unexpected behavior when adding X-Forwarded-For having the requests already such a header. -- Iñaki Baz Castillo <[email protected]> -- To unsubscribe send an email with subject unsubscribe to [email protected]. Please contact [email protected] for questions.
