To clear the query string: Reload this page
This form is a test for a new feature in HTML5 that associates orphaned form controls with a form element. In this example, the <textarea> element ("Comments") is not nested inside the <form> element, but it's using the "form" attribute to associate itself with the form.
When you submit the form, you'll see all submitted values in the query string in the URL.
In a supporting browser (FF4+, Chrome, Opera 10+) you'll see the URL like this:
In a nonsupporting browser (FF3.x, IE) the "comments" value will be missing, like this: