There's no null byte in the UTF-8 encoding of \x2400 (it's E2, 90, 80). Null bytes shouldn't appear in UTF-8 streams unless actually representing a null character: it's part of the design of UTF-8 that any byte <128 represents itself.

In reply to Re^2: Extra CGI.pm safety by stripping \x00 bytes? by marnanel
in thread Extra CGI.pm safety by stripping \x00 bytes? by rlucas

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