From c18ec32c855526fffb6db7f02b884a85b64aa99f Mon Sep 17 00:00:00 2001
From: Juliusz Chroboczek <jch@irif.fr>
Date: Thu, 13 May 2021 04:09:56 +0200
Subject: [PATCH] Protect against closed streams in recomputeUserStreams.

---
 static/protocol.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/static/protocol.js b/static/protocol.js
index 9ac2994..d2ed182 100644
--- a/static/protocol.js
+++ b/static/protocol.js
@@ -1068,6 +1068,8 @@ function recomputeUserStreams(sc, id, c) {
 
     for(id in sc.down) {
         let c = sc.down[id];
+        if(!c.stream)
+            continue;
         if(!user.down[c.label])
             user.down[c.label] = {};
         c.stream.getTracks().forEach(t => {