Am I reading the varnishlog correctly?

[Poul-Henning Kamp]

In message <3cc6f8100901210758u384af1d4k8091c903614f50b at mail.gmail.com>, Nathan
 Lenz writes:

>I wonder why my browser is sending an If-Modified-Since header when it
>doesn't really have a copy?  I've been running Varnish on a heavily used
>testing server for the past week and I get this from time to time in both
>Firefox and Safari but I can't reproduce it consistently.  Anyone experience
>anything like this?

Maybe your browser think it has a valid copy, of length zero ?

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.