ifference between the
    sandboxed and unsandboxed versions should quickly become apparent:</p>
    <textarea id='code'>window.localStorage['sekrit']</textarea>

    <button id='unsafe'>eval() in an unsandboxed frame.</button>
    <button id='safe'>eval() in a sandboxed frame.</button>

    <iframe id='unsandboxed'
            src='http://iframe.klipse.iframe:9001/sandbox-eval/frame.html'></iframe>
    <iframe sandbox='allow-scripts'
            id='sandboxed'
            src='http://iframe.klipse.iframe:9