CKEditor requires JavaScript to run. In a browser with no JavaScript support, like yours, you should still see the contents (HTML data) and you should be able to edit it normally, without a rich editor interface.
In this sample the editor is configured to edit entire HTML pages, from the <html> tag to </html>.
Editor 1: <html><head><title>CKEditor Sample</title></head><body><p>This is some <strong>sample text</strong>. You are using <a href="http://ckeditor.com/">CKEditor</a>.</p></body></html>