Why does my embedded app get rejected for using 3rd party cookies?

[appbuilderfig]

I’m willing to start a new Shopify app with vuejs and nodejs, the app is embedded.

It was rejected when I submitted my app for review.

Reply from Shopify:

Embedded apps that rely on 3rd party cookies are prohibited from the Shopify App Store. Implement session tokens to embed your app. Review our requirements for more information. The app shows an error when the 3rd party cookies are blocked.

I'm getting a refused to connect error when entering from the incognito tab.I don't use cookies but I do use local Storage.

What can I do about it?

What is the cause of the problem?

[ssagli]

Did you figure this out? I'm having the same issue.

[Pnorbs]

Me too.  Is there a solution?