I'm trying to run `firebase emulators:starts` on my project that makes use of Cloud Functions.

It starts the local server at port 5001, if I open it in Chrome I get a `{ "status": "alive" }` response, but after 30 seconds it shuts down by itself because of a "timeout".

```
✔  functions: Emulator started at http://localhost:5001
i  Shutting down emulators.
i  Stopping functions emulator

Error: TIMEOUT: Port 5001 was not active within 30000ms

```

The project works fine when deployed to Google Cloud, so what's the issue?

I tried to run it with `sudo` but it didn't help.

I'm on Windows 10 with WSL (Ubuntu).