diff --git a/openvidu-insecure-js/docker/Dockerfile b/openvidu-insecure-js/docker/Dockerfile
index 1645eb33..c40636b7 100644
--- a/openvidu-insecure-js/docker/Dockerfile
+++ b/openvidu-insecure-js/docker/Dockerfile
@@ -2,12 +2,13 @@ FROM ubuntu:16.04
 MAINTAINER openvidu@gmail.com
 
 # Install Kurento Media Server (KMS) 
-RUN echo "deb http://ubuntu.kurento.org xenial kms6" | tee /etc/apt/sources.list.d/kurento.list \
- && apt-key adv --keyserver keyserver.ubuntu.com --recv 2F819BC0 \
- && apt-get update \
- && apt-get -y dist-upgrade \
- && apt-get -y install kurento-media-server-6.0 \
- && rm -rf /var/lib/apt/lists/*
+RUN echo "deb http://ubuntu.openvidu.io/6.7.0 xenial kms6" | tee /etc/apt/sources.list.d/kurento.list \
+	&& apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 5AFA7A83 \
+	&& apt-get update \
+	&& apt-get -y dist-upgrade \
+	&& apt-get -y install kurento-media-server \
+	&& apt-get -y install openh264-gst-plugins-bad-1.5 \
+	&& rm -rf /var/lib/apt/lists/*
 
 COPY kms.sh /kms.sh
 COPY ngrok.sh /ngrok.sh
@@ -19,11 +20,11 @@ RUN apt-get update && apt-get install -y openjdk-8-jdk && rm -rf /var/lib/apt/li
 # ngrok
 RUN apt-get update && apt-get install unzip
 RUN set -x \
- && apt-get update \
- && apt-get install wget \
- && wget https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zip \
- && unzip ngrok-stable-linux-amd64.zip -d /home/ngrok \
- && rm -f ngrok-stable-linux-amd64.zip ngrok
+	&& apt-get update \
+	&& apt-get install wget \
+	&& wget https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zip \
+	&& unzip ngrok-stable-linux-amd64.zip -d /home/ngrok \
+	&& rm -f ngrok-stable-linux-amd64.zip ngrok
 
 COPY ngrok.yml /home/ngrok/ngrok.yml
 
@@ -36,11 +37,11 @@ RUN apt-get update && apt-get install -y supervisor && rm -rf /var/lib/apt/lists
 COPY openvidu-server.jar openvidu-server.jar
 
 RUN set -x \
- && echo 'ngrok:x:6737:6737:Ngrok user:/home/ngrok:/bin/false' >> /etc/passwd \
- && echo 'ngrok:x:6737:' >> /etc/group \
- && chown ngrok:ngrok /home/ngrok \
- && chmod -R go=u,go-w /home/ngrok \
- && chmod go= /home/ngrok
+	&& echo 'ngrok:x:6737:6737:Ngrok user:/home/ngrok:/bin/false' >> /etc/passwd \
+	&& echo 'ngrok:x:6737:' >> /etc/group \
+	&& chown ngrok:ngrok /home/ngrok \
+	&& chmod -R go=u,go-w /home/ngrok \
+	&& chmod go= /home/ngrok
 
 EXPOSE 4040
 EXPOSE 4443
diff --git a/openvidu-insecure-js/docker/create_image.sh b/openvidu-insecure-js/docker/create_image.sh
index b80dd217..5602c105 100755
--- a/openvidu-insecure-js/docker/create_image.sh
+++ b/openvidu-insecure-js/docker/create_image.sh
@@ -4,8 +4,8 @@ cp ../../../openvidu/openvidu-server/target/openvidu-server-"$1".jar ./openvidu-
 # Copy openvidu-insecure-js web files
 cp -a ../web/. ./web/
 
-# Modify WebSocket protocol in app.js for allowing both ngrok and localhost connections
-sed -i 's/OV\.initSession("wss:\/\/"/OV\.initSession("ws:\/\/"/g' ./web/app.js
+# Modify OpenVidu Server URL
+sed -i 's/url: "https:\/\/" + location\.hostname + ":4443/url: "https:\/\/" + location\.hostname + "/g' ./web/app.js
 
 # Build docker image
 docker build -t openvidu/basic-videoconference-demo .
diff --git a/openvidu-insecure-js/docker/kms.sh b/openvidu-insecure-js/docker/kms.sh
index 47324bf1..2e719e1b 100644
--- a/openvidu-insecure-js/docker/kms.sh
+++ b/openvidu-insecure-js/docker/kms.sh
@@ -1,14 +1,19 @@
 #!/bin/bash -x
 set -e
 
-if [ -n "$KMS_TURN_URL" ]; then
-  echo "turnURL=$KMS_TURN_URL" > /etc/kurento/modules/kurento/WebRtcEndpoint.conf.ini
-fi
+KMS_STUN_IP_AUX="stun.l.google.com"
+KMS_STUN_PORT_AUX="19302"
 
 if [ -n "$KMS_STUN_IP" -a -n "$KMS_STUN_PORT" ]; then
-  # Generate WebRtcEndpoint configuration
-  echo "stunServerAddress=$KMS_STUN_IP" > /etc/kurento/modules/kurento/WebRtcEndpoint.conf.ini
-  echo "stunServerPort=$KMS_STUN_PORT" >> /etc/kurento/modules/kurento/WebRtcEndpoint.conf.ini
+    KMS_STUN_IP_AUX="${KMS_STUN_IP}"
+    KMS_STUN_PORT_AUX="${KMS_STUN_PORT}"
+fi
+
+# Generate WebRtcEndpoint configuration
+echo "stunServerAddress=$KMS_STUN_IP_AUX" > /etc/kurento/modules/kurento/WebRtcEndpoint.conf.ini
+echo "stunServerPort=$KMS_STUN_PORT_AUX" >> /etc/kurento/modules/kurento/WebRtcEndpoint.conf.ini
+if [ -n "$KMS_TURN_URL" ]; then
+    echo "turnURL=$KMS_TURN_URL" >> /etc/kurento/modules/kurento/WebRtcEndpoint.conf.ini
 fi
 
 # Remove ipv6 local loop until ipv6 is supported
@@ -16,4 +21,4 @@ cat /etc/hosts | sed '/::1/d' | tee /etc/hosts > /dev/null
 
 export GST_DEBUG=Kurento*:5
 
-exec /usr/bin/kurento-media-server "$@"
+exec /usr/bin/kurento-media-server "$@"
\ No newline at end of file
diff --git a/openvidu-insecure-js/web/app.js b/openvidu-insecure-js/web/app.js
index 3e0211ba..dcb94627 100644
--- a/openvidu-insecure-js/web/app.js
+++ b/openvidu-insecure-js/web/app.js
@@ -155,11 +155,13 @@ function removeAllUserData() {
 
 function addClickListener(videoElement, userData) {
 	videoElement.addEventListener('click', function () {
-		var mainVideo = document.querySelector('#main-video video');
-		var mainUserData = document.querySelector('#main-video p');
+		var mainVideo = $('#main-video video').get(0);
 		if (mainVideo.srcObject !== videoElement.srcObject) {
-			mainUserData.innerHTML = userData;
-			mainVideo.srcObject = videoElement.srcObject;
+			$('#main-video').fadeOut("fast", () => {
+				$('#main-video p').html(userData);
+				mainVideo.srcObject = videoElement.srcObject;
+				$('#main-video').fadeIn("fast");
+			});
 		}
 	});
 }