HTML5 Uploader in YUI3 An experiment in working with the HTML5 File API for async file uploads using YUI3. NOTE: I have temporarily put this project on hold. The current implemetation of YUI3 io, while appropriate for 99% of current use cases, isn't flexible enough for the needs of this particular project. Luke Smith (http://github.com/lsmith/) is working on a prototype to replace the current io implementation that looks really promising. I am planning to devote some time to that project.