How to make a POST/GET request to googleScripts via fetch?

Question

Google

You need to deploy a Google script, with the ability to fetch data via fetch.

Now everything works if you click on the link in the browser.
For an example: click

But at attempt to receive the answer through GET we receive SyntaxError: Unexpected end of input(the answer comes empty).

POST throws 401 errors.

fetch('https://script.google.com/macros/s/AKfycbwl7XegZrDWmAen0Zb5aUAxF5shCV1fIwCsyGsB_aNJBJO3BRs/exec', {
    method: 'GET',
    mode:'no-cors',
    redirect:'follow'
}).then(res=>res.json());

Answer 1

I think you need to send parameters in the POST request, login and password.