A truly monstrous async web chat using no JS whatsoever on the frontend

It's a fairly common thing on onion websites, especially those who offer real-time interaction (e.g. some onion web-chats), they use this Transfer-Encoding: chunked method for fetching messages and content because JS is often discouraged and sometimes automatically blocked by onion-enabled navigators while surfing DW. HTML Forms with submit buttons are also used for this kind of interaction.