I would love to understand where it’s failing for you and what led you to the point of knowing that it was the headers and the behaviour of the temp headers with Postman that caused it.
I’m just trying to gather more information around this to expand more own knowledge, as the thread is full of different users from different contexts. There have only been a handful of folks who have given actual details of what they are seeing.
Would you be able to expand on your use case and share some images or details of what headers were causing you issues etc.
Also, you don’t need to sign up for Postman to use the application, not really sure where you read that.