From: Clive D.W. Feather (clive@demon.net)
Date: Tue Apr 17 2001 - 03:37:53 CDT
Russ Allbery said:
>> I think harm could arise if a reading agent saw an Xref header with an
>> article number left over from some upstream site and presumed that it
>> was meaningful on the local server (even if the local server did not use
>> article numbers for some reason).
>
> Good point. However, I think this is better dealt with as a constraint on
> the Xref header itself rather than as a constraint on all local headers.
But the original concept of "local headers" was, roughly, headers that
contained local-specific information that does not apply to other sites. So
in theory any local header could lead to a problem like that described.
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