Hi,
I've came across a problem (which was completely my mistake), which
caused the session in one of the controllers not to start properly
(actually at all). The problem was caused as I found out by a trailing
newline after the closing php tag in that controllers code.
I think it would be nice that in the __startSession() method in cake/
libs/session.php there will be a debug notice when a session is
created after the headers were already send (instead of silently
ignoring that). I think that in most cases when someone tries to
initiate the session after sending the headers, it usually means he
had some mistake (like a trailing whitespace).
Currently, all the errors generated in this event are quite misleading
("Config doesn't exist" is the error returned by the session component
and the session seams to be invalid). A better error message can be a
nice thing to help developers spot such annoying problems.
Just posted it in hope that if someone else runs into a similar
problem it might help him save some debug time.
Regards,
Guy
N.B.
I've written some more detailed description of the problem, and where
to modify the code to notify about such event in
http://www.guyrutenberg.com/2008/03/08/trailing-whitespace-causes-a-session-to-be-destroyed-in-cakephp/
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