mod_rewrite: is_subreq

[Werner Schalk <we...@gmx.de>]

Hello,

could somebody provide me an
example where mod_rewrite
uses is_subreq variable?
I mean if I understood this
correctly is_subreq returns
true if the request is currently
being processed by a sub-request.
But my question is: Which sub-request
is meant here? I mean for instance
if I ask mod_rewrite to use REMOTE_USER
it causes a look ahead and therefore
a sub-request. Would this cause
is_subreq to become true?

thanks and bye,
werner.


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