Наконецто IE по f12 может форматировать минифайед скрипт

F12 Developer Tools and Formatting Minified Script

To make the F12 Developer Tools even more convenient, we’ve added a feature in Platform Preview 6. Many developers minify their JavaScript to save bandwidth and speed up their sites, but minified code is painful to read and debug.  With IE9’s built-in JavaScript formatting, you can keep your code minified while still having easy-to-read code in the debugger:

via blogs.msdn.com