class Addressable::URI

def origin
  return (if self.scheme && self.authority
    if self.normalized_port
      (
        "#{self.normalized_scheme}://#{self.normalized_host}" +
        ":#{self.normalized_port}"
      )
    else
      "#{self.normalized_scheme}://#{self.normalized_host}"
    end
  else
    "null"
  end)
end