Website with ko languages does not show characters correctly

[scootergrisen]

Just to let you know http://smplayer.sourceforge.net/ko/ does not show characters correctly on Debian with Iceweasel web browser.
For example the language name under setting at the bottom of the website says:
한국어

That is 3 squares with:
D55C
AD6D
C5B4

Not sure if there is anything you can do, but just to let you know.

[rvm]

In Ubuntu 12.4 I have the same problem with Chromium but it's displayed correctly with Firefox. So I guess it's a problem of the browser.