title: How does websockets deal with for two tabs of the same browser
body: <p>I have </p>
  
  <ul>
  <li>1 PHP server (serving http request) and </li>
  <li>1 node.js publishing updated data messages (with websockets to each connection).</li>
  </ul>
  
  <p>The php server setup its cookie.  In one browser, this cookie is available across all tabs.</p>
  
  <p>When a browser has 2 tabs opened to the domain, there is only one cookie identifying the browser, but 1 message of updated data must be sent to each tabs.</p>
  
  <ol>
  <li><strong>What is the traditional way to distinguish between tabs ?</strong></li>
  <li><strong>Should I use another cookie (managed by node.js) to distinguish between each browser tabs ?</strong></li>
  </ol>