Are you saying that dafont does not support them, but the font is the support?
At the moment, the characters table does not show all the characters available in the font. It shows what is considered to be the most "used" characters, just to give an example in one blink. Of course, if you type your own text, with special characters, and if they are available in the font, they will show up in the custom preview field
It's an old version, I've updated your link
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