diff --git a/public/bundle.js b/public/bundle.js
index c1cad51..b512efb 100644
--- a/public/bundle.js
+++ b/public/bundle.js
@@ -20581,7 +20581,7 @@ const createSendTransport = () => {
   // see server's socket.on('createWebRtcTransport', sender?, ...)
   // this is a call from Producer, so sender = true
   console.log('EMIT sender: true!!!!!!!!!!!!!!!!!!!!');
-  socket.emit('createWebRtcTransport', { sender: 'true' }, (value) => {
+  socket.emit('createWebRtcTransport', { sender: 'true', test: '123' }, (value) => {
 
     console.log(`[createWebRtcTransport] value: ${JSON.stringify(value)}`);
 
diff --git a/public/index.js b/public/index.js
index cad9d46..36ad539 100644
--- a/public/index.js
+++ b/public/index.js
@@ -223,7 +223,7 @@ const createSendTransport = () => {
   // see server's socket.on('createWebRtcTransport', sender?, ...)
   // this is a call from Producer, so sender = true
   console.log('EMIT sender: true!!!!!!!!!!!!!!!!!!!!');
-  socket.emit('createWebRtcTransport', { sender: 'true' }, (value) => {
+  socket.emit('createWebRtcTransport', { sender: 'true', test: '123' }, (value) => {
 
     console.log(`[createWebRtcTransport] value: ${JSON.stringify(value)}`);