WebSocket Support

[pi0]

[description is wip]

Since Nuxt 3, we had (semi-official) solutions to support WebSocket in development and production but never a standard layer. This had been something we planned to support universally in nuxt/nitro dev server and runtime.

With the introduction of new dev server CLI architecture in nuxi 3.7 (#81) some of the current solutions stooped to be working.

My plan is to first make sure there is a basic replacement for current solutions and then put the stable WS layer on fast track to finally resolve this. (Update: hooking to the server upgrade via listen should work again now via #127)

Related issues:

• Access to root server on 'listen' hook for websocket setup #101
• nitro.devProxy for websocket is not working #107
• (Nuxt 3.7) Dev websocket (hmr) not working when using local https #112

[pi0]

Experimental websocket is available in nightly channels.

See https://github.com/pi0/nuxt-websocket

[pi0]

CLI support landing: #348

Note: Some features such as supporting devHandlers are not complete yet and need progress on Nitro side. You can track via https://nitro.unjs.io/guide/websocket and nitrojs/nitro#2171