In message <[email protected]>, "Roy T. Fielding" w
rites:
>One could argue a lot of things, but disabling the often-used
>and very useful User-Agent string [...]
How about making it intelligently usable instead ?
Right now everybody wastes bandwidth claiming to be "Mozilla/5.0"
with "Mozilla/4.0" being a distant second:
root@phk:/usr/local/www/logs # grep -c Mozilla/4.0 thttpd.log
44445
root@phk:/usr/local/www/logs # grep -c Mozilla/5.0 thttpd.log
369977
root@phk:/usr/local/www/logs # wc -l thttpd.log
520850 thttpd.log
with the result that those 12 bytes (incl the next SP) is just
a total waste of bandwidth.
HTTP/2.0 would be a great chance to stop this race to the bottom
where everybody sticks everything they can think of into User-Agent
in the hope that the dudes in the other end are incompetent enough
to actually cater for broken browsers.
If nothing else, putting a hard 32 byte limit on the string would
be a BIG improvement, since that would force people to transmit
only the necessary and useful information.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
[email protected] | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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