server: remove dangling custom error page and defaults to prod

server/app.ts

@@ -1,9 +1,8 @@
 import bodyParser from 'body-parser';
 import compression from 'compression';
 import cookieParser from 'cookie-parser';
-import express, {Request, Response, NextFunction, ErrorRequestHandler} from 'express';
+import express from 'express';
 import fs from 'fs';
-import createHttpError, {HttpError} from 'http-errors';
 import morgan from 'morgan';
 import passport from 'passport';
 import path from 'path';
@@ -55,36 +54,4 @@ app.get(path.join(paths.servedPath, 'overview'), (_req, res) => {
   res.send(html);
 });
 
-// Catch 404 and forward to error handler.
-app.use((_req, _res, next) => {
-  const err = createHttpError('Not Found');
-  err.status = 404;
-  next(err);
-});
-
-// Production error handler, no stacktrace leaked to user.
-let errorRequestHandler: ErrorRequestHandler = (err: HttpError, _req: Request, res: Response, _next: NextFunction) => {
-  res.status(err.status || 500);
-  res.render('error', {
-    message: err.message,
-    error: {},
-    title: 'Flood Error',
-  });
-};
-
-// Development error handler, will print stacktrace.
-if (app.get('env') === 'development') {
-  errorRequestHandler = (err: HttpError, _req: Request, res: Response, _next: NextFunction) => {
-    res.status(err.status || 500);
-    res.render('error', {
-      message: err.message,
-      error: err,
-      title: 'Flood Error',
-    });
-  };
-}
-
-// Error handler.
-app.use(errorRequestHandler);
-
 export default app;

server/bin/start.ts

@@ -6,6 +6,8 @@ import enforcePrerequisites from './enforce-prerequisites';
 import migrateData from './migrations/run';
 import startWebServer from './web-server';
 
+process.env.NODE_ENV = process.env.NODE_ENV !== 'development' ? 'production' : 'development';
+
 enforcePrerequisites()
   .then(migrateData)
   .then(startWebServer)