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URI fields in response headers

From: Jim Seidman <jim@spyglass.com>
Date: Wed, 14 Jun 95 18:33:56 -0500
Message-Id: <9506142333.AA01249@hook.spyglass.com>
To: http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com
Section 7.1.13 of the spec gives examples an example in which a request
generates a response with two URIs:

URI: <TheProject.ps>;vary="encoding,version",

The document doesn't make clear under what situations it is desirable (or
valid) to return multiple URIs.  Since one of the URIs must not be what the
client explicitly requested, it seems that this information is useless for
cache management, since the recipient can't know which URI goes with the
other metainformation (content-type, etc.) that was in the header.

Can someone give an example of when and why you would return multiple URIs?

Jim Seidman, Senior Software Engineer
Spyglass Inc., 1230 E. Diehl Road, Naperville IL 60563
Received on Wednesday, 14 June 1995 16:36:03 UTC

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