import sirv from 'sirv'; import polka from 'polka'; import compression from 'compression'; import * as sapper from '@sapper/server'; const { PORT, NODE_ENV } = process.env; const dev = NODE_ENV === 'development'; //const setCORS = (req, res, next) => { // res.setHeader('Access-Control-Allow-Origin', 'http://localhost:8000/auth') // next() //} polka() // You can also use Express .use( compression({ threshold: 0 }), sirv('static', { dev }), sapper.middleware() ) .listen(PORT, err => { if (err) console.log('error', err); });