Try to connect to ws before server initialization: "Must provide a proper URL as Target"

[WerdoxDev]

Environment

just the exact codesandbox template using nodejs.

Reproduction

You can use this code in the browser to keep trying to connect to the websocket and then run the server in the codesandbox.

Here is the code:

setInterval(() => {const ws = new WebSocket("https://pp9zzy-3000.csb.app")}, 2000);
//          I'm not sure if the url will be exactly this or not ^

and the codesandbox:
https://codesandbox.io/p/github/nitrojs/nitro/csb-pp9zzy/draft/compassionate-wiles

Steps:

• run the code so it keeps trying to connect to the websocket,
• run the nitro server with "npm run dev" in codesandbox
• you will see an error saying "Must provide a proper URL as Target"

Describe the bug

The bug only happens when you got clients already trying to connect to the websocket before the server is even running.
It won't happen if the server is run first and then clients start to connect.

Additional context

No response

Logs

error: Must provide a proper URL as target
      at <anonymous> (E:\JS\huginn-monorepo\node_modules\httpxy\dist\index.mjs:539:9)
      at <anonymous> (E:\JS\huginn-monorepo\node_modules\nitropack\dist\core\index.mjs:2457:7)
      at emit (node:events:331:22)
      at fetch (node:http:589:24)