#19 cookie too large bug?

[Anonymous]

Summary: Boa doesn't serve images if the cookie
returned by the client is too large.

We use Boa as an image server for our forums
(forums.macnn.com). If we set the cookie with broad
domain support (for all *.macnn.com domains) then users
begin experiencing an image delivery problem where
images don't appear in users' browsers--not as a
general rule, but the incidence picks up significantly.
However, if we set the cookies for the forums.macnn.com
domain only, users do not experience this problem. We
tracked this to unusually large cookies set by Vbulletin.

Unfortunately, we need the cookie support to
authenticate users in other parts of user system (in
different domains). Is there anyway to set Boa to
ignore all cookies or fix this problem?