Joseph pointed out a problem where IE 6 won't display a cached page when it gets a 304 from the conditionalhttp plugin. (The issue is at the bottom of the email.)
I did some poking around and discovered on Wednesday that this happens on his blog as well as on my blog with IE 6 on Windows XP. On Thursday, I was no longer able to reproduce the problem on my site, but Joseph's was still broken. I don't know off hand what changed with my site, though I did do an apt-get update Wednesday night.
Anyhow, the 304 response from my site (which seems to work fine now) is (note the server line is wrapped):
HTTP/1.1 304 Not Modified Date: Thu, 23 Jun 2005 14:32:26 GMT Server: Apache/1.3.33 (Debian GNU/Linux) mod_python/2.7.10 Python/2.3.4 \ PHP/4.3.10-15 mod_ssl/2.8.22 OpenSSL/0.9.7d DAV/1.0.3 ETag: "1119536230.43" Last-Modified: Thu, 23 Jun 2005 14:17:10 GMT Keep-Alive: timeout=15, max=100 Connection: Keep-Alive Content-Type: text/html; charset=iso-8859-1
And from Joseph's site (which is still not working):
HTTP/1.1 304 Not Modified Date: Thu, 23 Jun 2005 14:37:15 GMT Server: Apache/2.0.46 (Red Hat) Connection: Keep-Alive Keep-Alive: timeout=5, max=100 ETag: "1118428239.0" Vary: Accept-Encoding,User-Agent =bunch of funky non-printable characters here=
Looking at responses from other requests to Joseph's server leads me to believe that pages are gzipped. I'm not sure if that's part of the issue or not.
My site: http://www.bluesock.org/~willg/blog/
Joseph's site: http://reagle.org/joseph/blog/
I'm running PyBlosxom 1.2.1 with the contributed plugins pack 1.2.2 with conditionalhttp. I think Joseph is as well. I have no idea if this is affecting anyone else--no one else has complained on the mailing lists or anywhere else that I've checked.
Anyone have any ideas as to what might be happening?