RFE: Additional POST data upon listener_remove if listener_add is undefined.
When using URL authentication, if the listener_add option is undefined, return additional identifying data in the listener_remove POST.
Specifically, include the User Agent, and the IP address of the disconnected listener.
This provides useful accounting data for setups that do not use listener_add, but still want to get accounting data from anonymous streams.
To upload designs, you'll need to enable LFS. More information