I need some advice on the correct way to create my project

[Ron_Hagan]

I have a project where I have basically 4 files: An HTML file (index.html), a CSS file (styles.css) and 2 Node js files (script1.js and script2.js).

The html file is a basic page that gets populated from the code in script1.  It populates a calendar with the days of the month for the current month and gives the user the ability to change the month in a couple of different ways.

Script2 executes an HTTP GET request and from the response, populates the individual days of the month with pieces of data if it exists for that day.

I've tried this in VS  Code and keep getting CORS errors.  I created a project in Business Application Studio and get the same error.  

This is really the first time I've tried to create a Business Application Studio app other than a tutorial and I'm thinking I'm setting it up incorrectly.

So I'm searching for someone who might have some time to look at what I have and give me some suggestions on how I can improve the code and make the project work.

I can provide code, if requested.

Thanks in advance!

Ron