Identity

[John Cowan]

Richard Tobin wrote:

> > That *is* supposed to be a rule: that you can GET the same URL
> > as many times as you want with no changes.  Otherwise caching
> > would not work.
> 
> Surely the whole mechanism of HTTP "if-modified-since" and "expires"
> headers exists because this is not true?

I overstated my case.  What I meant was that the *very act* of
doing a GET is not supposed to change anything.  Obviously the
*result* of doing a GET may change over time.

-- 
John Cowan	http://www.ccil.org/~cowan		cowan at ccil.org
	You tollerday donsk?  N.  You tolkatiff scowegian?  Nn.
	You spigotty anglease?  Nnn.  You phonio saxo?  Nnnn.
		Clear all so!  'Tis a Jute.... (Finnegans Wake 16.5)

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