问题 I have a react microservice (via nginx) deployed onto google cloud run with its environment variable for the backend set to another google cloud run instance that's running gunicorn which is serving the backend. My Flask app is set up following everything I could find about allowing CORS: app = Flask(__name__) app.config.from_object(config) CORS(app, resources={r"/*": {"origins": "*"}}) app.config['CORS_HEADERS'] = 'Content-Type' return app # Different file, a blueprint's urls: @blueprint