We all know how IE is good with table design, but luckily these days are long over, and still, IE sticks like the gum on the bottom of your shoe that just won't fall off, making our lives as developers and designers a nightmare. Most of us hoped that with IE9 the problems will disappear, which in some part was true.
This blog posts gives an overview how to do asynchronous file upload using new possibilities given in HTML5. Besides that, we talk about how to use PHP I/O streams to keep the memory footprint low as possible during upload of large files. This principle is also used for uploading files in Webiny administration.