The script testcgi.pl lets you see what information
your browser is sending to a CGI script, and presents the information back in a form that
lets you debug a CGI script offline. This may be useful for situations where you have no access
to the Webserver error log, or you just want to develop a script under a debugger.
Below is an example form, using methods of GET and POST. POST is preferred for longer input, since
some systems may impose a byte limit on input for GET. GET is preferred where one wishes to bookmark the
URL including the query values.
Note that the Jot input only works with a few browsers (Mosaic for X11) - it allows you to draw
a picture and send that, like entering data on a pen-based palmtop. Image input does not work properly
on some browsers.