Enable CORS for run_simulation_stream endpoint

Author: MirkoZETA

CHANGELOG.md

@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added unit tests for the streaming endpoint
 - Modified `simulator.hpp` to flush stdout after each line for better streaming support (see `src/README.md`)
 - Improved help endpoint with more concise documentation
+- Enabled CORS only for `/run_simulation_stream` endpoint to allow controlled API access
 
 ### Changed
 - Standardized API response format for better consistency:

backend.py

@@ -2,11 +2,14 @@
 # A Flask API for running Flex Net Sim network simulations
 
 from flask import Flask, request, Response, stream_with_context
+from flask_cors import CORS
 from utils.helpers import *
 
 # --- Flask Application Setup --- 
 app = Flask(__name__)
-#CORS(app, resources={r"/run_simulation": {"origins": 'http://localhost:5000'}})
+
+# Enable CORS only for /run_simulation_stream
+CORS(app, resources={r"/run_simulation_stream": {"origins": "*"}})
 
 @app.route("/run_simulation", methods=["POST"])
 def run_simulation():