class Roadie::NetHttpProvider

def find_stylesheet!(url)
  response = download(url)
  if response.is_a? Net::HTTPSuccess
    Stylesheet.new(url, response_body(response))
  else
    raise CssNotFound.new(
      css_name: url,
      message: "Server returned #{response.code}: #{truncate response.body}",
      provider: self
    )
  end
rescue Timeout::Error
  raise CssNotFound.new(css_name: url, message: "Timeout", provider: self)
end