I'm a debian user...and the site you were refering to displays fine.
this is not a link , but none the less it is what you posted.
this is the correct link.
Now either your character encoding setting is a total mess, or you're trying to make things difficult
What do you mean with
The Browser has nothing to do with Tex/LaTex, all it gets are a bunch of *.png files, for example
for a formula.
But maybe post an example of the output you get from your browser!