Handlers array could be simpler if constructor would recognize two
additional arguments, event_prefix and default_target_session or
something shorter with similar meaning. So if in HANDLERS we have some
string to match request but no session field target session is that
default target session and target handler will be constructed using
prefix and event name. That will make HANDLERS array somewhat shorter.
In similar way prefix is used in PoCo::FUSE.
RT for rt.cpan.org