problem with adAuthenticator - non printable characters added to username

[Peter Schober]

Scott Cantor via users <users at shibboleth.net> [2026-07-28 18:38 CEST]:
> The obvious inference is that the user is entering it and no cleanup
> is being done to prevent them from getting through to that step.

Not all that easy getting linefeed, tab and esp NUL byte chars entered
into a username form field. Password manager run amok?

-peter