Missing CORS headers #536

I just tried various 1.2.x version and none of them set any CORS headers, so even running on localhost is failing for me due to different ports.

I fixed that locally by editing node_modules/@codeceptjs/ui/bin/codecept-ui.js and change

const io = require('socket.io')();

to

const io = require('socket.io')({
  cors: {
    origin: "http://localhost:3333",
    credentials: true,
    methods: ["GET", "POST"],
    transports: ['websocket', 'polling']
  },
  allowEIO3: true
});

A proper solution would require to make the origin configurable.