downloading a zip file attachment

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I'd like to allow my cl-http based system to download a zip file to the =
user. If I use something like:

(defmethod download ((url url:http-computed-url) stream)
   (http:with-successful-response (stream :text :additional-headers =
'(:content-disposition (:attachment :filename "/tmp/scenarios.zip")))))

the downloaded attachment has zero length, probably because the mime =
type (:text) is wrong? But it looks like cl-http does not have a mime =
type defined for zip files. What should I do? Could someone show me how =
to define the mime type for zip files, if that's the solution?

    Thanks!

	Mark

-------------------------------
Mark Klein
Principal Research Scientist
MIT Center for Collective Intelligence
http://cci.mit.edu/klein/



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