The problem is that when a program is run under CGI, its STDIN is a pipe to the HTTP server process (where POST data can be read from), which is not a terminal. Looks like an XY Problem. What program do you run under Expect and how does it misbehave?

In reply to Re: Given filehandle is not a tty in clone_winsize_from by aitap
in thread Given filehandle is not a tty in clone_winsize_from by chackypandy

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