NodeJS : express.js - server listening but localhost refused to connect

To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As promised, I'm going to share a hidden feature with you.
This is a YouTube's feature which works on Desktop.
First, Make sure the video is currently in playing mode.
Then, type the letters 'awesome' on the keyboard.
It will change your youtube progress bar into a flashing rainbow.

A short overview of who I am,
Hello everyone, I'm Delphi.
I help you answer your questions.
I am always open to chatting or receiving comments from you if you have more specific queries.
Don't hesitate to provide your answer or insights by leaving a comment below.
A 'heart' from me will be given to show my gratitude for your contribution.