rst at ai
Mar 13, 1995, 1:49 PM
Post #3 of 4
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Date: Mon, 13 Mar 95 18:29 GMT
From: drtr [at] ast (David Robinson)
>E7) Send Last-modified header for server-side-included docs if
> group XBIT is set. [Rob Hartill, by way of Andrew Wilson]
Would this not be far more neatly implemented by a new shtml directive?
David.
Actually, there already is something like this in the spec ---
<META http-equiv="last-modified">, although for maximum convenience
the server would have to be hacked to plug in the actual last-modified
date if no other data were supplied.
The real problem with implementing this is that it requires nontrivial
surgery on the http_includes code --- the server needs to do a prepass
over the document which covers at least the <HEAD> (and, for the sake
of efficiency, to be smart enough to figure out where that ends
without explicit </HEAD> tags) before printing the MIME headers.
After that, assuming that the client isn't just being told to
USE_LOCAL_COPY, the server has to go back and do a second pass in
which it actually scans the document (shipping most of it back to the
client, and interpreting the remaining directives).
This is obviously the right thing, but it's also a nontrivial amount
of work, so it'll have to be deferred until someone is motiviated
enough to roll up their sleeves and code it.
rst
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