Re: If-Modified-Since implementation question
David W. Morris (dwm@xpasc.com)
Wed, 2 Feb 2000 20:34:07 -0800 (PST)
On Wed, 2 Feb 2000, Julien Pierre wrote:
>
> Was the possibility of files being rolled to older versions just
> overlooked in the HTTP spec ?
> If not, how are these cases supposed to be handled ?
Overlooked ... no, when the file is changed is must have a newer last
changed date ... the content of the web server changed even if the file
contains an older version of the content. ETags were invented as the full
solution.
Dave Morris