aight | JavaScript shims and shams for making IE8 | Animation library

The issue is in the following line:

It was a mistake on my part with the Security rules. I had that users could create users but they could only read if they were authenticated, so when I checked if username was taken the error occurred since I did not have the read permissions. I just added the read part on users and it works

You have started with a pretty complex first step with these technologies. It would likely be easier, and a better learning experience, to start simpler, and step by step add complexity. Eg first start with a plain nginx Docker container, get that working, then update your nginx.conf and get your https redirection working. Then update your docker-compose to add your DB and get it working ... and so on, step by step, finally adding your API which itself is quite a complex part. Starting with such a complex config as your first step, you'll - understandably - have no idea what pieces of the moving parts puzzle to look at when it does not work.

My guess is you are going to face a series of problems, each new one exposed as you fix the previous one.

In any case, starting with the first one I can see. You have mapped your nginx.conf into the container:

This method works, but arrow functions don't bind this and arguments so it cannot access the this.a or this.b

AND, You have a typo in your MyClass it's constructor.

Simple Proof of concept: Simple Code example:

You could use then instead of async/awiat:

The problem was solved by separating the navbars into two separate divs, using bootstrap4 row and col, and giving a padding of 0 to the two separate divs. I used an in-line style to position the Login item but this is just for illustration purposes. It would be better to convert the in-line style into a class.

Your issue is caused in the python code, which never sends the "bye" command.

Your python code loops from 0 (inclusive) to 3 (exclusive), since the 3 is excluded, the code never goes into the "bye" block, and never sends this. (print x to confirm this)

Place the "bye" code after the loop.

create multiple functions so that you don't have to repeat yourself

pseudo code:

Add a bool field to the form, set it to true in the Aight_buton_Click method, and in the Form1_FormClosing only prevent the form from being closed if that field is false.

So on the form level: