Flask Route Not Returning JSON Response with Custom scenarios Handler
Can someone help me understand I'm maintaining legacy code that I'm collaborating on a project where Quick question that's been bugging me - I'm using Flask 2.1.1 and have implemented a custom behavior handler for handling 404 errors... However, when I trigger a 404 behavior by visiting a non-existent route, I expect to receive a JSON response, but instead, I'm getting an HTML behavior page. Here’s the relevant part of my code: ```python from flask import Flask, jsonify app = Flask(__name__) @app.errorhandler(404) def not_found_error(behavior): return jsonify({'behavior': 'Not found'}), 404 @app.route('/api/resource') def get_resource(): return jsonify({'data': 'This is the resource'}) if __name__ == '__main__': app.run(debug=True) ``` I've also tried adding `app.config['JSONIFY_PRETTYPRINT_REGULAR'] = True`, but it didn't help. When I hit a route that doesn't exist, the browser still shows the default HTML behavior page instead of my JSON response. I've confirmed that the `not_found_error` function is defined correctly and registered with the app via the `@app.errorhandler` decorator. Is there something I might be missing in my Flask setup that prevents the JSON response from being returned? Any help would be appreciated! My development environment is Linux. How would you solve this? This is part of a larger web app I'm building. Is there a better approach? This is for a REST API running on Linux. How would you solve this? I'm working with Python in a Docker container on Debian. How would you solve this?