x-forwared-for error on stackblitz

[samydoesit]

Environment

"nuxt": "^3.10.3",
"nitro": "2.9.0"

Reproduction

https://stackblitz.com/edit/github-jnmnbt?file=README.md

Describe the bug

A new Nuxt Starter on Stackblitz via nuxt.new leads to an error - nothing will be rendered. (undefined - x-forwared-for)

 ERROR  [uncaughtException] Invalid value "undefined" for header "x-forwarded-for"  

Downgrading nitropack to 2.8.1 fixes the issue.

Additional context

No response

Logs

ERROR  [uncaughtException] Invalid value "undefined" for header "x-forwarded-for"                        10:57:09

  at __node_internal_ (https://githubjnmnbt-om4n.w-credentialless-staticblitz.com/blitz.c9a8a620.js:36:5406)
  at new <anonymous> (https://githubjnmnbt-om4n.w-credentialless-staticblitz.com/blitz.c9a8a620.js:36:4168)
  at __node_internal_ (https://githubjnmnbt-om4n.w-credentialless-staticblitz.com/blitz.c9a8a620.js:184:8336)
  at OutgoingMessage.appendHeader (https://githubjnmnbt-om4n.w-credentialless-staticblitz.com/blitz.c9a8a620.js:184:8963)
  at ProxyServer.eval (node_modules/nitropack/dist/chunks/server.mjs:342:16)
  at EventEmitter.emit (https://githubjnmnbt-om4n.w-credentialless-staticblitz.com/blitz.c9a8a620.js:42:9202)
  at ClientRequest.eval (node_modules/httpxy/dist/index.mjs:272:16)
  at EventEmitter.emit (https://githubjnmnbt-om4n.w-credentialless-staticblitz.com/blitz.c9a8a620.js:42:9202)
  at https://githubjnmnbt-om4n.w-credentialless-staticblitz.com/blitz.c9a8a620.js:252:11492
  at onSocketNT (https://githubjnmnbt-om4n.w-credentialless-staticblitz.com/blitz.c9a8a620.js:252:11509)

[manniL]

@pi0 (sorry for the ping but rather urgent) - sent a PR fixing this in #2198

[pi0]

Thanks for the report and PR. It will be fixed in a patch release however it is strange that stackblitz is not setting this field (according to the Node.js docs it shall be undefined but when socket is destroyed).

It also made issues in other places such as crossws.unjs.io when testing on stackblitz. (will relay this to the team)