JSFiddle - React, Tailwind, and code Playground

JavaScript

var iframe = document.createElement("IFRAME");
iframe.setAttribute("src", 'data:text/plain,');
document.documentElement.appendChild(iframe);
setTimeout(function(){
    if(window.frames[0].window.confirm("Are you sure?")){
        alert("Yes was clicked");
    } else {
        alert("No was clicked");
    }
}, 1e3);