Maybe the question is very primitive and its solution is in the certificate, but in my opinion, they will answer here much faster and more clearly than I will find.
Essence: a post request is sent via Indy Client:
IdHTTP1->Post(url,list)
Problem: when the request is sent, the program, waiting for a response, does not respond (hangs). How to make it so that the program remains active while waiting for a response to a request?