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Re: New section for Host

From: Lou Montulli <montulli@mozilla.com>
Date: Mon, 18 Mar 1996 12:59:27 -0800
Message-Id: <314DCEAF.7DE1@mozilla.com>
To: "Roy T. Fielding" <fielding@avron.ICS.UCI.EDU>
Cc: http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com
X-Mailing-List: <http-wg@cuckoo.hpl.hp.com> archive/latest/24
Roy T. Fielding wrote:
> 10.22  Host
>    The Host request-header field specifies the Internet host and port
>    number of the resource being requested, as obtained from the original
>    http URL (Section 3.2.2) given by the user or referring resource.
>    The Host field value must represent the network location of the
>    origin server or gateway given by the original http URL.  This allows
>    the origin server or gateway to differentiate between
>    internally-ambiguous URLs (such as the root "/" URL of a server
>    harboring multiple virtual hostnames).
>        Host = "Host" ":" host [ ":" port ]    ; see Section 3.2.2
>    A "host" without any trailing port information is equivalent to
>    a value of "host:80".  For example, a request on the origin server
>    for <http://www.w3.org/pub/WWW/> must include:
>        GET /pub/WWW/ HTTP/1.1
>        Host: www.w3.org
>    The Host header field must be included in all HTTP/1.1 request
>    messages on the Internet (i.e., on any message corresponding to a
>    request for an http URL, as described in Section 3.2.2).  If the
>    Host field is not already present, an HTTP/1.1 proxy must add a Host
>    field to the request message prior to forwarding it on the Internet.
>    If an HTTP/1.1 request message lacking a Host header field is
>    received via the Internet by an origin server or gateway, that server
>    must respond with a 400 status code.

This looks great.  The only thing I would change would
be to point out that when a port is missing, the port
is implied to be the default port, which is 80 for
standard HTTP and 443 for HTTP over SSL (i.e. https urls).

Lou Montulli                 http://www.netscape.com/people/montulli/
       Netscape Communications Corp.
Received on Monday, 18 March 1996 13:06:20 UTC

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