%error{:url => "#{request.env['REQUEST_URI']}", :status => "#{response.status}"}
  %kind backend_error
  %backend{ :driver => driver_symbol }
    %code= @error.code
    - if @error.respond_to?(:details) && @error.details
      %details< #{cdata @error.details.join("\n")}
  %message< #{cdata @error.message}