I my Flask app to redirect http to https. I found python flask redirect to https from http but it does not work.
from flask import Flask, request, redirect from werkzeug.serving import make_ssl_devcert make_ssl_devcert('key') app = Flask(__name__) @app.before_request def before_request(): if request.url.startswith('http://'): url = request.url.replace('http://', 'https://', 1) code = 301 return redirect(url, code=code) @app.route("/") def hello(): return "Hello World!" if __name__ == "__main__": app.run(host='127.0.0.1', port=443, debug=False, ssl_context=('key.crt', 'key.key'))