Svelte failure on new project

gistfile1.txt

Error report when "npm run dev" fails, and shows sirv source code file.

When I try Svelte on an older project of mine, that shows "Hello world", the same sirv problem happens, but with a twist.

The project is:
https://github.com/joelparkerhenderson/demo_svelte_hello_world

When I use the "localhost" URL below, the error happens, and shows the sirv source code file.

When I use the "192.168.100.219" URL below, the page shows "Hello world" as expected.

###


rollup v0.58.2
bundles src/main.js → public/bundle.js...

   ┌─────────────────────────────────────────────────────┐
   │                                                     │
   │   Serving!                                          │
   │                                                     │
   │   - Local:            http://localhost:5000         │
   │   - On Your Network:  http://192.168.100.219:5000   │
   │                                                     │
   │   Copied local address to clipboard!                │
   │                                                     │
   └─────────────────────────────────────────────────────┘

created public/bundle.js in 198ms

[2020-02-12 20:26:33] waiting for changes...