title: javascript changing the get parameter without redirecting
body: <p>How can I just change the get parameter without redirecting? </p>
  
  <pre><code>parent.location.search = "?after=20"; 
  // ok that changes, but also redirect to the new page
  </code></pre>
  
  <p>Any solution? Or answer is no, if its no, please write big no.</p>