Express-Session not working on production when on Incognito Mode

I am using express-session to handle user sessions. The problem is when I'm on incognito mode in production it doesn't work. I use heroku to deploy my node js application.

On localhost I use this and it works on both normal and incognito mode.

app.use(  session({    secret: process.env.SESSION_SECRET,    resave: false,    saveUninitialized: false,    store: store,    cookie: {      maxAge: 1000 * 60 * 60 * 100,    },  }));

But once deployed, I use the code below since the top doesn't work on production and doesn't set the cookie. Now this works and sets the cookie but not on incognito mode.

app.use(   session({    store: store,    secret: process.env.SESSION_SECRET,    resave: false,    saveUninitialized: true,    proxy: true,     cookie: {      secure: true,      maxAge: 1000 * 60 * 60 * 48,      sameSite: "none",    },   }) );

I found a similar problem but has no answers:Express Session is not working in production on incognito mode but everything working fine locally

EDIT

After hours of searching. I think this problem has something to do with how heroku handles cookies if sent from a different from a different domain eg: www.my-front-end.netlify.app requests api from www.my-heroku-backend.app If someone on incognito allows third party cookies, then the problem will be solved. I may be wrong please feel free to correct me. Thanks everyone. For more info check:https://devcenter.heroku.com/articles/cookies-and-herokuapp-com

TLDR: Heroku sends third party cookies. Incognito blocks third party cookies thus the error is created.