diff --git a/src/web_app/js/loopback.js b/src/web_app/js/loopback.js
index 2e1ab95ad..afa70a48e 100644
--- a/src/web_app/js/loopback.js
+++ b/src/web_app/js/loopback.js
@@ -72,6 +72,7 @@ function setupLoopback(wssUrl, roomId) {
       // https://bugs.chromium.org/p/chromium/issues/detail?id=616263
       // https://bugs.chromium.org/p/chromium/issues/detail?id=1077740
       loopbackAnswer = loopbackAnswer
+          .replace(/a=crypto:[1-9]+ .*?\\r\\n/g, '')
           .replace(/a=crypto:[1-9]+ .*/g, '');
       sendLoopbackMessage(JSON.parse(loopbackAnswer));
     } else if (message.type === 'candidate') {