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.
This sample shows CKEditor configured to produce a legacy HTML4 document. Traditional HTML elements like <b>, <i>, and <font> are used in place of <strong>, <em> and CSS styles.
Editor 1: <p>This is some <b>sample text</b>. You are using <a href="http://ckeditor.com/">CKEditor</a>.</p>