title: how to remove all sessionstorage whose key is some character "abc" while pages refresh?
body: <p>can you please tell me how to remove all session value whose key is some character "abc" while pages refresh? I know how to get event when page refesh I need to remove all values in session whose key have character "abc"?</p>
  
  <pre><code>window.onbeforeunload = function(e) {
    return 'Dialog text here.';
  };
  </code></pre>
  
  <p>As we store value in sessionStorage.setItem("abc","test");
  thanks</p>