title: Which web browsers send ping/pong requests in their websocket connections?
body: <p>I wrote a websocket server but neglected to implement the PING/PONG command. It worked, however I noticed in my logs the server occasionally crashed because one or more clients had sent a PING/PONG request.</p>
  
  <p>Is there a list of web browsers that send PING/PONG requests on their websocket connections?</p>