Does less.js support IE 9 at least?

It’s about less.js that might be used for debug. If you use LESS and less.js I think you visited its site and read something like this:

LESS runs on both the client-side (Chrome, Safari, Firefox)

What about IE? at least IE9? I’ve found nothing about IE and LESS support in Google. So, I decided to ask the author if LESS. Thanks, he’s answered! His answer is:

IE9 is not officially supported – it may or may not work.

I’ve tested lots of LESS code in IE 9 using less.js and it seems that everything works good. Don’t forget that less.js should be used only for debug.