Works fine for me (Firefox on Android and Windows)—I think your browser doesn't handle Unicode combining characters properly. (Chrome gets a little funky with them on Android, haven't used Windows Chrome in a while).
The reason is it's two codepoints but one "grapheme", and some software doesn't handle grapheme clusters well.
The reason is it's two codepoints but one "grapheme", and some software doesn't handle grapheme clusters well.