Netlify dev not starting at 8888

Support
,
2

Update:

I’ve identified the issue: CRA is configured to use HTTPS/SSL, but I can’t seem to get netlify dev config’d to do the same, despite following the instructions here:

Update2:

Disabling CRA HTTPS

#.env
HTTPS=false

and configuring netlify.toml as per the documentation:

[dev]
  [dev.https]
    certFile = "ca.pem"
    keyFile = "ca.key"

Now correctly starts up an https server on localhost:8888 when running netlify dev

TL;DR:
Ensure your app is running via HTTP, configure netlify to serve HTTPS, otherwise netlify dev will silently fail.

Notes for netlify:
Would be nice to have some sort of error handling for this if SSL is not in the expected state.