title: Node.js web application browser compatibility
body: <p>I heard node.js is an ideal framework for building real time web application (chatting, live feeds etc...), then i guess it involve lot of socket io connection between nodejs and client browser.</p>
  
  <p>in client side do i have to use websocket(html5) in order to communicate with node.js, if that is the case, then most of the older browser won't support HTML5-Websocket.</p>
  
  <p><strong>Question :</strong> 
  <em>are real time web applications built using node.js will work only with HTML5 compatible browsers.?</em></p>