Aug 9, 2014 · But 1 time in their 20 URL requets of these people, URL has these weird characters at last. http://example.com/@%EF%BF%BD%EF%BF ... (EF BF BD) of ...

Character name, REPLACEMENT CHARACTER ; Hex code point, FFFD ; Decimal code point, 65533 ; Hex UTF-8 bytes, EF BF BD ; Octal UTF-8 bytes, 357 277 275.

Aug 20, 2021 · Hi there. I'm reading serial data using the serial component. However, from time to time characters are replace by a white question mark on ...

Sep 18, 2020 · EF BF BD EF BF BD EF BF BD EF BF BD EF BF BD EF BF BD. which seems to be a Unicode replacement character. Remembering some old code I'd found ...

May 14, 2021 · This is converted to the three UTF-8 bytes EF BF BD . Ahah! Understood, thanks very much for explaining that! I think this can be fixed by ...

Feb 17, 2011 · The three characters correspond to the bytes EF BF BD (in hex), which is the utf-8 encoding of the Unicode character U+FFFD REPLACEMENT ...

Sep 25, 2020 · value. If I look at the textarea.value in the debugger immediately after this assignment, it contains bytes 22 EF BF BD 50 4e… it has replaced ...

The question marks here are a problem because they represent values in our data that are not valid characters, we don't know what those bytes mean.