Add second STUN server from Cloudflare

www/video-rtc.js

@@ -71,7 +71,7 @@ export class VideoRTC extends HTMLElement {
          */
         this.pcConfig = {
             bundlePolicy: 'max-bundle',
-            iceServers: [{urls: 'stun:stun.l.google.com:19302'}],
+            iceServers: [{urls: ['stun:stun.cloudflare.com:3478', 'stun:stun.l.google.com:19302']}],
             sdpSemantics: 'unified-plan',  // important for Chromecast 1
         };
 

www/webrtc-sync.html

@@ -21,7 +21,7 @@
 <script>
     async function PeerConnection(media) {
         const pc = new RTCPeerConnection({
-            iceServers: [{urls: 'stun:stun.l.google.com:19302'}]
+            iceServers: [{urls: ['stun:stun.cloudflare.com:3478', 'stun:stun.l.google.com:19302']}]
         });
 
         document.getElementById('video').srcObject = new MediaStream([

www/webrtc.html

@@ -21,7 +21,7 @@
 <script>
     async function PeerConnection(media) {
         const pc = new RTCPeerConnection({
-            iceServers: [{urls: 'stun:stun.l.google.com:19302'}]
+            iceServers: [{urls: ['stun:stun.cloudflare.com:3478', 'stun:stun.l.google.com:19302']}]
         });
 
         const localTracks = [];