@sitespeed.io/server/src/middleware/errorhandler.js

The sitespeed.io server

import nconf from 'nconf';
import { getText } from '../util/text.js';

import { getLogger } from '@sitespeed.io/log';
const logger = getLogger('sitespeedio.server');

export const error404 = function (request, response) {
  response.status(400);
  response.render('404', {
    title: '404: File Not Found',
    description: '404',
    nconf,
    getText
  });
};

export const error500 = function (error, request, response) {
  logger.error(error.stack);
  response.status(500);
  response.render('500', {
    title: '500: Something is broken?',
    description: '500',
    nconf,
    message: error.message,
    getText
  });
};