[phpOpenTracker-User] Call to log() sends no-cache header?

It seems that if I call phpOpenTracker::log() the following header is 
sent out:

Cache-Control: no-store, no-cache, must-revalidate, post-check=0, 
pre-check=0

Why is this header sent out? It is absolutely necessary? Sending it 
makes the pages un-cacheable ...

Thanks,

Jean-Christian Imbeault



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