diff --git a/z1/README.md b/z1/README.md
index 92036a7..6366c18 100644
--- a/z1/README.md
+++ b/z1/README.md
@@ -38,3 +38,7 @@ http://[ip address you copied]:5000
 
 - A default network is created by docker compose for communication between these services
 - A named volum ('redis_data') ensures Redis data persists across restarts.
+
+## Cross-Origin Resource Sharing (CORS)
+
+Since frount end (Apache)
diff --git a/z1/backend/Dockerfile b/z1/backend/Dockerfile
index 717a23c..be27c94 100644
--- a/z1/backend/Dockerfile
+++ b/z1/backend/Dockerfile
@@ -4,7 +4,7 @@ WORKDIR /app
 
 COPY app.py /app/
 
-RUN pip install flask redis
+RUN pip install flask redis flask-cors
 
 EXPOSE 5000
 
diff --git a/z1/backend/app.py b/z1/backend/app.py
index da96927..dbfb451 100644
--- a/z1/backend/app.py
+++ b/z1/backend/app.py
@@ -1,9 +1,11 @@
 from flask import Flask, jsonify
+from flask_cors import CORS
 import redis
 
 app = Flask(__name__)
+CORS(app)
 
-# Connect to Redis (running in a separate container)
+# Connect to Redis (running in a separate container and foldr)
 redis_client = redis.StrictRedis(host='redis', port=6379, decode_responses=True)
 
 @app.route('/counter', methods=['GET'])
diff --git a/z1/web/index.html b/z1/web/index.html
index 241da34..83fec2a 100644
--- a/z1/web/index.html
+++ b/z1/web/index.html
@@ -14,7 +14,7 @@
   <script>
     async function updateCounter() {
       try {
-        const response = await fetch('http://localhost:5001/counter');
+        const response = await fetch('http://172.17.225.171:5001/counter');
         const data = await response.json();
         document.getElementById('counter').textContent = data.visits;
       } catch (error) {