[949] express midleware on v1.0.0-alpha.4

Hello i use middleware express before nuxt

const Nuxt = require('nuxt')
const express = require('express')
const app = express()
const nuxt = new Nuxt(config)
let config = require('./nuxt.config.js')
config.dev = false;

app.use(function (req, res, next) {
        nuxt.renderRoute(req.url)
        .then(data => res.end(data.html ? data.html : 'empty render'))
        .catch(error => res.end('This page error render!!!!!'))
    });

I have result

This page error render!!!!!

for every page (((

how i can fix it ?

Thanks