Fwd: cgi parameters not passed if method=GET?

I'm answering my owner question: I set a rewrite rule but
didn't forward the parameters in the rule :)

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Hi all,

I'm using a Python CGI with lighttpd. a form is submitted
to this CGI. I find that if I use method POST, this line of
Python code gets the form parameters correctly, but if I
use GET, the form variable does not contain any parameters:

form = cgi.FieldStorage(keep_blank_values = True)

The same script is tested working OK on two other web servers.
Am I missing something?

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Best regards,
Jack