title: sessionStorage is null on one IE 11 browser
body: <p>We want to use sessionStorage to store a random browser's tab ID using the following code:</p>
  
  <pre><code>if (sessionStorage) {
    if (!sessionStorage.getItem("id")) {
       sessionStorage.setItem("id", getCID());
    }
    cId = sessionStorage.getItem("id")
  }
  </code></pre>
  
  <p>This works for all machines and browsers like IE, Chrome, Safari, etc. But on one specific machine running Windows 10 + IE11, the sessionStorage is alway null. I have searched for similar problems, but no results. Clearing the browser's cache and cookies also did not work.</p>