Link to the project: https://github.com/Bixkitts/relic-mercs-game
(It's a multiplayer browser game)
Link to newb-friendly article: https://developer.mozilla.org/en-US/docs/Web/HTTP/Overview
Link to actual HTTP 1.1 standard: https://www.rfc-editor.org/rfc/rfc2616
Note: I wrote HTTP 1.1, not 2 or 3 or even TCP/IP itself.
BUT this does include TLS/SSL.
Blocked nose today, sorry.
I'm happy to answer any questions in the comments pertaining to HTTP basics, stuff I missed, corrections, or the project!