Ionic versus Server's Session

Hi, I’m facing an issue here …

Ionic services have not been being able to keep the server’s session.
I’ve thought it were bugs on my projects however I created a blank server project and blank ionic project and created a counter, storing in the server’s session.

It’s counting fine when I access through any browsers and aplications, however, if it’s Ionic, it’s always returning the first counter value, demonstrating that it’s not keeping the session.

How could I solve this?

Thanks.
Igor