http argument ackId
Added by Roger Man almost 3 years ago
Hi
I see an automatically generated argument with incremental values named ackId. It is generated for each client request and the values are subsequently increasing.
Is it related to Wt seesion management?
Is it a security countermeasure or what? Then why it is that predictable and simple?
What is the mechanism?
P.S. There is another similar value named evAckId.
Regards
Replies (2)
RE: http argument ackId - Added by Roel Standaert almost 3 years ago
It's just a simple sequence number to make sure client and server are in sync. The client sends it to the server to indicate that it has received the last update. If the connection drops that may not be the case, and the server will resend the response on the next opportunity.