Hi Edy,
I've not tried this myself - but it's interesting that it was the _browser_ that crashed. Try using Firefox, it has better error reporting. All.js is javascript that the "client side" uses, and if anything is "safe" from the server then this should be.
you could also try turning off "use pre-compressed files" (see web server extension, advanced tab) and see if that makes any difference.
Cheers
Bruce