Update main.py

main.py

@@ -4,7 +4,7 @@ from fastapi.middleware.cors import CORSMiddleware
 app = FastAPI()
 
 origins = ['http://localhost:3000', 'http://127.0.0.1:3000',
-           'https://localhost:3000', 'https://127.0.0.1:3000'] 
+           'https://localhost:3000', 'https://127.0.0.1:3000', 'https://codepen.io/'] 
 
 app.add_middleware(
     CORSMiddleware,