venkman and firebug loading source code for a page without sending the params that were sent when the browser made the call

i'm sorry for the multi-post but i was just advised that
netscape.public.mozilla.jsdebugger moved to mozilla.dev.apps.js-
debugger.
also i have already posted this message as a forward but failed to see
it in the group so this is the second post.
sorry for the hassle.

hi all,

i am debugging a site with venkman and firebug.
it seems the debuggers try to get their own copy of the source from
the
web server (instead of taking the browser's copy as i would expect)
and
call it without the params it needs (which the browser itself did
send
when it loaded the page).
i am interested to know if this behaviour is by design. it would seem
strange to me if it were so, since different params might mean
totally
different source sent to the browser.
(in case it matters the page on which i saw this problem handles a
multipart/form-data form submition.)


thanks to all in advance,
eyal.