def head(status, options = {})
options, status = status, nil if status.is_a?(Hash)
status ||= options.delete(:status) || :ok
location = options.delete(:location)
content_type = options.delete(:content_type)
options.each do |key, value|
headers[key.to_s.dasherize.split('-').each { |v| v[0] = v[0].chr.upcase }.join('-')] = value.to_s
end
self.status = status
self.location = url_for(location) if location
self.content_type = content_type || (Mime[formats.first] if formats)
self.response_body = " "
end