net/data/websocket/multiple-connections.html

   1 <title>WebSocket is not subject to HTTP(S) connection limit</title>
   2 <script>
   3 var protocol = location.protocol.replace('http', 'ws');
   4 var url = protocol + '//' + location.host + '/echo-with-no-extension';
   5
   6 // TODO(ricea): The limit for ws: is 255, but wss: gets a limit of 30
   7 // (per-host:port, not ip:port!) because it still uses the HTTP pool code. This
   8 // should be fixed at some point. When it is, change this number back to 50 (or
   9 // even larger, if it works).
  10 var socketCount = 30;
  11 var connected = 0;
  12
  13 for (i = 0; i < socketCount; ++i) {
  14   var ws = new WebSocket(url);
  15   ws.onopen = function() {
  16     ++connected;
  17     if (connected == socketCount) {
  18       document.title = "PASS";
  19     }
  20   };
  21   ws.onclose = function() {
  22     document.title = "FAIL";
  23   };
  24 }
  25
  26 setTimeout(function() {
  27   console.log("Got stuck after " + connected + " socket(s) connected");
  28   document.title = "FAIL";
  29 }, 5000);
  30 </script>