Zero Width Space does not work?

[LyhjeHylje]

Hi, I have problems with long strings, it seems like zero-width-space character is not recognized and text tends to overflow or act funny.
It seems that if I use ​ as zws strings handle properly, but with "normal" unicode code they do not. Should I use some unicode-html converter library or have I missed something?

To be more clear:
lalalalalalal​alalalalala works but
lalalalalalal​alalalalala does not(there should zws code there somewhere)

[LyhjeHylje]

Update: ​ does NOT work after all. Browser seems to just ignore it, is this another thing that webkit does not support?