From 8ce64787e5f824ec732db6890d6a85c59beec6d9 Mon Sep 17 00:00:00 2001
From: Auxane Thouary <athouary@parsys.com>
Date: Wed, 22 Apr 2020 11:21:23 +0200
Subject: [PATCH] Drop firefox empty string candidates

---
 rtcpeerconnection.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/rtcpeerconnection.js b/rtcpeerconnection.js
index ccc7d94..1638d3f 100644
--- a/rtcpeerconnection.js
+++ b/rtcpeerconnection.js
@@ -787,6 +787,8 @@ PeerConnection.prototype._onIce = function (event) {
         if (this.dontSignalCandidates) return;
         var ice = event.candidate;
 
+        // drop firefox empty string candidate
+        if (!ice.candidate.length) return;
         var expandedCandidate = {
             candidate: {
                 candidate: ice.candidate,