Click doesn't work on this Google Translate button?

Question

I am creating an Tampermonkey userscript that would automatically click the \"star\" button on Google Translate website and save my searches so that I can later view them an

Answer 1

Here is my fully intelligent code for storing your searches, based on Brock Adams's answer:

// ==UserScript==
// @name     _Auto click the Star button on Google Translate
// @match    https://translate.google.com/*
// @require  http://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js
// @require  https://gist.github.com/raw/2625891/waitForKeyElements.js
// @grant    GM_addStyle
// ==/UserScript==
/*- The @grant directive is needed to work around a design change
    introduced in GM 1.0.   It restores the sandbox.
*/

function triggerMouseEvent (node, eventType) {
    var clickEvent        = document.createEvent('MouseEvents');
    clickEvent.initEvent (eventType, true, true);
    node.dispatchEvent   (clickEvent);
}

$(window).on('hashchange', function(e){
    var firstURL = window.location.href;
    console.log(firstURL);
    setTimeout(function(){
    var secondURL = window.location.href;

        if (firstURL == secondURL){
            var el = document.getElementById("gt-pb-star").firstChild;
            if (el.classList.contains("trans-pb-button-saved")){

            }else{
            triggerMouseEvent (el, "mouseover");
            triggerMouseEvent (el, "mousedown");
            triggerMouseEvent (el, "mouseup");  
            }
        }
    },3000);
});