JSFiddle - React, Tailwind, and code Playground

JavaScript

// HTTP error is triggered immediately
$.ajax({
    dataType:'jsonp',
    timeout:5000,
    url: '/test123.jsonp',
    error:function() {
        alert("jsfiddle.net error");
    }    
});
// HTTP error is only triggered after timeout
$.ajax({
    dataType:'jsonp',
    timeout:5000,
    url: 'https://jquery.com/test123.jsonp',
    error:function() {
        alert("jquery.com error");
    }    
});