[nostrademons]

Chrome Mac renders it correctly.

[hn9780470248775]

Since it's a character in Unicode's "private use area," its correct rendering is unspecified. (That code point's "use and interpretation may be determined by private agreement among cooperating users" according to the Unicode standard.)

[nostrademons]

Correct as in "as the original poster intended", not as in "as the spec specifies".