Pollyfills for XHR2 and File API
Upload files async with xhr2 or iframe for IE. Supporting IE8+. React component.
A non-iframe, pure XHR2 Backbone.model.save file upload
jQuery Plugin that adds XHR2 responseType support
XMLHttpRequest polyfill for node.js
SpeedTest by OpenSpeedTest™ is a Free and Open-Source HTML5 Network Performance Estimation Tool Written in Vanilla Javascript and only uses built-in Web APIs like XMLHttpRequest (XHR), HTML, CSS, JS, ...
A tiny 1kb JavaScript library for preloading assets on the browser via XHR2. It provides the ability to load assets of different file types and composite progress events.