JSHint whines "This character may get silently deleted by one or more browsers."

[anthonyteo]

Hi, everytime I run web-beautify on my js files, an additional character is apparently added to the top of the file, on the first line. The problem here is that JSHint, which my grunt runs, complains each time and refuse to run as a result. Any idea how to prevent that additional character from being added?

Thanks in advance for your attention.