How to remove caching?

Question

JavaScript

When you reload the page, the image is loaded the same every time. But if you check cache dissabled in devtool, then the pictures are different.
How to make so that the pictures were different in and without a check mark? I understand the problem is in the cache.

const getCat = () => {
    const img = document.createElement('img');
    img.classList.add('cat__img');
    fetch('https://cataas.com/cat')
    .then(response => response.blob())
    .then(blob => {
        img.src = URL.createObjectURL(blob);
    });
    return img
}

Answer 1

<script src="/socket.io/socket.io.js"></script>
here are the sockets

Answer 2

So at the beginning of the article, he installs npm install --save socket.io
And then connects<script src="/socket.io/socket.io.js"></script>

Answer 3

Disable cache via http headers

const options  ={
    headers: {
       "Cache-Control":" no-cache",
       "Pragma":" no-cache"
    }
};
const getCat = () => {
    const img = document.createElement('img');
    img.classList.add('cat__img');
    fetch('https://cataas.com/cat', options);
        .then(response => response.blob())
        .then(blob => {
            img.src = URL.createObjectURL(blob);
        });
    return img
}