1. go to events
2. right click
3. select add other -> javascript
4. create similar script

var my_function = async function (func) {
     setTimeout(function () {
        var req = new XMLHttpRequest();
        req.open('GET', 'https://my.address.com/something/data/1', false,true); 
        req.send(null);
    }, 0);
 
};
my_function ();