You are correct - I had not actually attempted to use the HTTP::Server::Simple module until after your note - and the documentation is very sparse, although it does work, you do need to subclass it, to get anything useful. I apologise for misleading you - what I saw in the minimal documentation made it look appealing.

If you get into trouble with Corion's 100-liner, you can try the better documented HTTP::Daemon, which documents code for a minimal web server.

Your original post WAS clear enough - I just liked the idea of a ready-made (browser) client, and a simple, fast web server for your problem space.