Hi Anthony,
Yes, You are right. Your understanding is correct.
And I tried it, with <url>/parameters?refresh=false. It is not working. Same Request Timed out problem.
Ex:
Method: PUT
URI:http://localhost:6405/biprws/raylight/v1/documents/1111/parameters?refresh=false
Request Body: (With Empty Request Body)
Best Regards,
Mahendra