From 4b32c55a57caff674e3404785826cb51b9d1bfeb Mon Sep 17 00:00:00 2001
From: Juliusz Chroboczek <jch@irif.fr>
Date: Thu, 11 Jun 2020 19:11:36 +0200
Subject: [PATCH] Restart ICE in client on up connection failures.

---
 static/sfu.js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/static/sfu.js b/static/sfu.js
index 9bec93f..554c1fa 100644
--- a/static/sfu.js
+++ b/static/sfu.js
@@ -1168,7 +1168,7 @@ async function newUpStream(id) {
         }
     }
 
-    pc.onicecandidate = function(e) {
+    pc.onicecandidate = e => {
         if(!e.candidate)
             return;
         send({type: 'ice',
@@ -1177,6 +1177,17 @@ async function newUpStream(id) {
              });
     };
 
+    pc.oniceconnectionstatechange = e => {
+        if(pc.iceConnectionState === 'failed') {
+            try {
+                pc.restartIce();
+            } catch(e) {
+                console.error(e);
+                displayError(e);
+            }
+        }
+    }
+
     pc.ontrack = console.error;
 
     return id;