This page contains a form with a lot of variables and a submit button. When you press the button, the data you see it sent to a CGI script on the server side, and a whole lot more data that you can't see is also sent. In this demo, the script simply shows you everything that it receives. However, the receiving script can do anything else it likes with the data, and doesn't have to tell you what it's doing. The idea here is to give you a feel for what you could be giving away to any web site that you visit, if you have JavaScript enabled.

You can type any text in the input fields. If you type a password, it should not be displayed by your browser, but it will be passed (in the clear) over the network to the server. When you press Submit, the form data is sent to a CGI script that will simply display what it receives.