Cases when closing a connection after a non-empty "200 OK" is valid?

Question

I'm debugging an issue between a server and a client where I have a hunch the issue is that the client is prematurely closing the connection, but I can't find the information I need.

My server is sending a 200 OK with no Close header and a non-empty Content-Length, but my client device immediately sends an ACK+FIN (No HTTP message) and closes the session. My experience with HTTP sessions tell me that this is not normal, but I need a quote from a standard that says it's wrong. A list of times it's valid to close a session after a 200 OK, for example.

For what it's worth, it's a CWMP ACS and CPE exchange.

Answer 1

It's not wrong. The client could be a browser and the user could have paged away, or back, or closed the browser.

The server just has to cope.