Keep what was uploaded even if browser disconnects

[m081072]

Hi all, this might be a little mental, but I have Actionscript code in
the browser that kicks off a HTTP POST of a binary body thats about 1MB
in size.  If the user navigates away from the page, or somehow the
browser disconnects, I'd like to be able to get whatever data was
uploaded, even if its only 10% of the body.

Is there any way I can do that?  Even if it means telling nginx not to
clean up temporary files, that would work. 

Basically I'm doing this for analytics purposes.

Thanks very much!
Mike.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,228573,228573#msg-228573