'use strict'; const common = require('../common'); const http = require('http'); const server = http.createServer(common.mustCall((req, res) => { res.writeHead(200, { 'Content-Type': 'text/plain' }); res.write('okay', common.mustCall(() => { delete res.socket.parser; })); res.end(); })); server.listen(0, '127.0.0.1', common.mustCall(() => { const req = http.request({ port: server.address().port, host: '127.0.0.1', method: 'GET', }); req.end(); })); server.unref();