minimal-examples/http-server/minimal-http-server-tls-mem/mount-origin/example.js

   1 document.addEventListener("DOMContentLoaded", function() {
   2
   3         var transport_protocol = "";
   4
   5         if ( performance && performance.timing.nextHopProtocol ) {
   6             transport_protocol = performance.timing.nextHopProtocol;
   7         } else if ( window.chrome && window.chrome.loadTimes ) {
   8             transport_protocol = window.chrome.loadTimes().connectionInfo;
   9         } else {
  10
  11           var p = performance.getEntriesByType("resource");
  12           for (var i=0; i < p.length; i++) {
  13                 var value = "nextHopProtocol" in p[i];
  14                   if (value)
  15                     transport_protocol = p[i].nextHopProtocol;
  16             }
  17            }
  18
  19            if (transport_protocol == "h2")
  20                 document.getElementById("transport").innerHTML = "<img src=\"/http2.png\">";
  21         }
  22 }, false);