This variable is used when you are writing a Common Gateway Interface (CGI) program in COBOL. It allows you to suppress the output of the HTML header.
Set CGI_AUTO_HEADER to "0" (off, false, no) if you want to suppress the output of the HTML header. This can be useful when you want to execute a CGI program and include its output into an existing flow of HTML text. For example, with server-side includes, or SSI, you can instruct the Web server to execute a subprogram in the manner of CGI and then incorporate its output right into the HTML document before sending it to the requesting client. The default value is "1" (on, true, yes).