How to retrieve JSON on api.ps3838.com

Hello,

I give Postman a try with a POST on https://api.ps3838.com/ in order to login.
ps3838 is a RESTful service belonging to Pinnacle and is documented here https://github.com/pinnacleapi/pinnacleapi-documentation.

The login works fine (Status 200 ok), the problem is the result follows html format instead of JSON.
result being :

Anyone having an idea or already had this difficulty?

Did you set this header?

    Accept: application/json

Thank you vdespa. Yes i did but i suspect they don’t provide json as answer for the login call as i tested some other rest calls and it works fine