Get progress or status for Tin Can file with JS

My scenario is that I have a Tincan file (inside my platform), It is created with Storyline. I am using a player to do it and progress it.

Using Rise tool I got the progress of the file using the Runtime property and the getProgress() method, but for storyline I have not found anything to use.

I would like to get the progress status or the status of the user (doing the tincan file), because I have a label for the status of the tincan file in my platform and I would like to update it.

I am using JS inside the player and I implement a setInterval every 500ms to check the progress but I have not found the property or method to get the status or progress from the file.

Could you help me? Thank you!