Chtml:button Label Characters

How can I get the Chtml:Button label to show characters other than English?

If I use this, the SUBMIT button is shown properly:

However, if I use this below with a Swedish character, no text is shown at all:

The page has this in the <head> and is otherwise showing characters properly:

I can add that when the page is loaded, the value is empty:

take look at the guide

I just need to do a very simple implementation at the moment and have added the following to /protected/config/main.php

However, it still doesn’t work.