From:  Michał Gołębiowski <m.goleb@gmail.com>
Date:  20 Apr 2013 03:46:49 Hong Kong Time
Newsgroup:  news.mozilla.org/mozilla.dev.js-sourcemap
Subject:  

Re: Change sourceMappingURL comment syntax to avoid IE JS conditional compilation issues

NNTP-Posting-Host:  89.78.248.150

> As the last line of a file it, do it really cause any problems with IE's
> 
> conditional code?  Can you give an example where it does?

See this jQuery ticket: http://bugs.jquery.com/ticket/13274

It doesn't matter if conditional compilation was activated in the script we're talking about, it's enough it has been turned on before and it hasn't been turned off.