# I believe a better way to set cookies (and replacing the lines above) is:

        status = '%s %s' % (response.status_code, status_text)  # Still unused...

        self.set_status(response.status_code)
        for h in response.items() :
            self.set_header(h[0], h[1])

 # Set the cookies using the tornado function for that purpose.
        for cookie_key,cookie_value in response.cookies.iteritems() :
            self.set_cookie(cookie_key, cookie_value.value, **dict(cookie_value.iteritems()))

        self.write(response.content)
        self.finish()