Why are the cookies not setting when not on localhost?

Question

I am building an Angular application and I am using ngx-cookie-service to manipulate the cookies.

When I run on my local machine, the cookies are set just fine. When I run on my test server and access it via localhost, it also works just fine. eg: http://localhost:<port_number>

But if I try to access it on the test server from another machine using the ip address (http://<server_ip>:<port_number>), the application works but the cookie is not there and there is no message, error or warning, about what is happening.

I searched other answers but couldn't find a clue. I also fiddled with the setting for Same-Site = 'Lax' or 'None' and Domain but it didn't change things.

Here is a sample of what I am doing

  constructor(private cookieService: CookieService) { }

    this.cookieService.set("cookieName", "value", null, "/", null, true);

What am I doing wrong?

Edit:

I discovered that if I set the cookie with secure=false and sameSite="Lax", it does set:

If I set secure=true and SameSite="Lax", it does not set:

I need the secure to be true as a security requirement, so I cannot leave it like that.

This cookie is not being sent from the back-end, the front-end is creating it to store some info.

Does anyone know why it sets in without secure?

Answer 1

I managed to find a way for the cookie to appear.

Installing a certificate on the server, when the website is called with the https protocol, the cookie appears.

I couldn't find anywhere were it said that cookies with Secure set were not created over plain http but it does make sense, when you think about it.