Followed default instructions (incl npm start) -> the server doesn't print error messages, but doesn't handle requests either

[marjakh]

To reproduce:

Take a clean checkout
npm run build
npm run watch

(In another terminal):
npm start

Output from npm start:

v8.dev$ npm start

> @ start /home/marja/code/v8.dev2/v8.dev
> superstatic --port=9001


Superstatic started.
Visit http://localhost:9001 to view your app.

But nothing is served on that port (when navigating with a non-incognito browser, it'll show a cached version).

$ wget http://localhost:9001
--2020-09-14 09:02:54--  http://localhost:9001/
Resolving localhost (localhost)... ::1, 127.0.0.1
Connecting to localhost (localhost)|::1|:9001... failed: Connection refused.
Connecting to localhost (localhost)|127.0.0.1|:9001... connected.
HTTP request sent, awaiting response... ^C

Workaround: npx serve dist

v8.dev$ npx serve dist
npx: installed 78 in 4.18s

   ┌────────────────────────────────────────────────────┐
   │                                                    │
   │   Serving!                                         │
   │                                                    │
   │   - Local:            http://localhost:5000        │
   │   - On Your Network:  http://192.168.178.24:5000   │
   │                                                    │
   │   Copied local address to clipboard!               │
   │                                                    │
   └────────────────────────────────────────────────────┘

$ wget http://localhost:5000
--2020-09-14 09:04:26--  http://localhost:5000/
Resolving localhost (localhost)... ::1, 127.0.0.1
Connecting to localhost (localhost)|::1|:5000... connected.
HTTP request sent, awaiting response... 200 OK
Length: 6267 (6.1K) [text/html]
Saving to: ‘index.html’

index.html          100%[===================>]   6.12K  --.-KB/s    in 0s      

2020-09-14 09:04:26 (341 MB/s) - ‘index.html’ saved [6267/6267]

If it's a problem with "the server fails to get the port" or something, it should at least print an error message!