JSFiddle - React, Tailwind, and code Playground

JavaScript

(function() {
    var originalOpen = XMLHttpRequest.prototype.open;
    XMLHttpRequest.prototype.open = function(method, url, async, user, password) {
        var getParameter = 'foo=bar';
        
        if(url.indexOf('?') === -1) {
           url = url + '?' + getParameter;
        } else {
           url = url + '&' + getParameter;
        }
        
        console.log('you just got monkey-patched! url is now:', url);
        
        originalOpen.call(this, method, url, async, user, password);
    }
})();

var request = new XMLHttpRequest();
request.open('get', 'http://google.com');