server/lib/filer-www/json-handler.js
function handle404(url, res) {
  var json = {
    error: {
      code: 404,
      message: 'The requested URL ' + url + ' was not found on this server.'
    }
  };
  write(json, res, 404);
}
function handle404(url, res) {
  var json = {
    error: {
      code: 404,
      message: 'The requested URL ' + url + ' was not found on this server.'
    }
  };
  write(json, res, 404);
}
function handle404 ( url , res ) { var json = { error : { code : 404 , message : 'The requested URL ' + url + ' was not found on this server.' } } ; write ( json , res , 404 ) ; }
Send an Apache-style 404
Send an Apache - style 404