Allow Cross-Origin requests

app.py

@@ -1,8 +1,10 @@
 import json
 
 from flask import Flask, jsonify, request, render_template
+from flask_cors import CORS
 
 app = Flask(__name__)
+CORS(app)
 with open("data.json") as f:
     data = json.load(f)
 

requirements.txt

@@ -1 +1,2 @@
 Flask>=1.1
+flask-cors >= 3.0