This page uses the iso-8859-1 charset, therefore, characters sent with the form which are not in the iso-8859-1 charset should be encoded as numeric character references (NCR).

Unfortunately, this does not work with some characters.

For example, copy and paste this text into the input box and validate the form : €œΣ

The result will be displayed there :

Display the source code and check the result :

Actual result : €œΣ (those are actually the windows-1252 € (0x80) and œ (0x9c))

Expected result : €œΣ