'Connect a chrome extension with an API using a web app

I have developed a web application with a login system (login/password or a google SSO).

Now, I am working on a chrome extension to display some data of my web application and I do not want to ask my users to connect again.

Is it possible, to somehow use the same authentication used to log in the user in my web application (without using cookies) ?

How can I share the logged state between my web application and my chrome extension ?

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Solution	Source