puma-dev not working in Ubuntu 22.04 with Rails 4

[Hiren-Cialfo]

Ruby - 2.4.7
Rails - 4.2.1
puma-dev: Version: 0.18.2 (go1.17.6)

Here is the file in the .puma-dev directory

When I start the rails server and hit the url in browser it gives some error.

puma-dev is up and running

Sometime I face 503 Service Temporarily Unavailable error as well, when I add another file in the .puma-dev directory with different port.

Please help me.

[Alan Norton]

Have you tried accessing your app via HTTP instead of HTTPS? The error in your screenshot indicates that you haven't trusted your Puma-dev CA.

[Christian Pelczarski]

@Hiren-Cialfo See here #205 (comment)