I am having a hard time saving the cookies on the client side of a MERN project. This is how the entry point of my server looks like:

const express = require('express');
const app = express();
const mongoose = require('mongoose');

const session = require('express-session');
const cors = require('cors');
const MongoDBSession = require('connect-mongodb-session')(session);

let PORT = process.env.NODE_PORT;

mongoose.connect(process.env.DB_URL, {
    useUnifiedTopology: true,
    useNewUrlParser: true,
    useFindAndModify: false,
    useCreateIndex: true
}).then(
    () => {
           console.log('Database is connected');
    },
    err => {
        console.log('Could not connect to the database. ' + err)
    });

const store = new MongoDBSession({
    uri: process.env.DB_URL,
    collection: 'sessions'
});

app.use(session({
    secret: process.env.SESSION_SECRET,
    resave: false,
    saveUninitialized: false,
    cookie: {
        domain: '.frontend-domain.me',
        sameSite: 'none',
        secure: true,
        httpOnly: true,
        maxAge: 24 * 60 * 60 * 1000
    },
    store: store
}));

app.use(cors({
    origin: 'https://frontend-domain.me',
    methods: ['GET', 'PUT', 'POST', 'DELETE'],
    allowedHeaders: ['X-PINGOTHER', 'Content-Type'],
    credentials: true,
    maxAge: 86400
}));

// Some routes

app.get('*', (req, res) => {
    res.sendStatus(404);
});
const server = app.listen(PORT, function () {
    console.log(`Server Connected on port #${PORT}. Restart Occured at ${new Date()}`);
    process.send('ready');
});

and my front end request that is used to set the session variable is like the following:

 axios.post('/route/to/my/server', {
    email: this.state.email,
    password: this.state.password

}, { withCredentials: true })
    .then(res => {
        // do something
    })
    .catch(err => {
        // handle
    });

to handle this request i have a file at my server that is:

router.post('/my/server', (req, res) => {
    // if the user is matched then:

    console.log("Logged in successfully");
    req.session.user = user;
    req.session.loggedin = true;
    req.session.save(function(err) {
        res.send({ 
            loggedin: true,
        });
    });
});

I have tried changing the cors settings, tries changing the cookies settings on the chrome, still no good response. After the response my cookies are not set: See image
and when i try to access the session variables in the next request, the session variables are not present there. Although session variables are stored in the Database.