title: React Router v4 - Keep scrolling position when switching components
body: <p>I have two <code>&lt;Route&gt;</code>s created with react-router.</p>
  
  <ul>
  <li>/cards -> List of cards game</li>
  <li>/cards/1 -> Detail of card game #1</li>
  </ul>
  
  <p>When the user clicks on the  "Return to list", I want to scroll the user where he was on the list.</p>
  
  <p>How can I do this?</p>