This variable allows you to choose whether the HTML output of your Common Gateway Interface (CGI) program will be cached by the requesting client.
The default value is 1 (on, true, yes), which means there is no caching. By default, the runtime generates Pragma: no-cache in the HTML response header that gets sent to the standard output stream. If you set CGI_NO_CACHE to 0 (off, false, no), the runtime suppresses this line of the response header, and the requesting client caches the output.
For information about writing a CGI program in COBOL, see Launching Web Applications Through CGI in A Programmer's Guide to the Internet.