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pythonpython-3.xflaskflask-corsmax-age

How to set Access-Control-Max-Age for flask_cors?

In my flask application, I need to set Access-Control-Max-Age. What is the correct syntax for it?

from flask import Flask, send_from_directory
from flask_cors import CORS, cross_origin
app = Flask(__name__,static_folder='./build') 
CORS(app)

reference: https://flask-cors.readthedocs.io/en/latest/api.html

Solution

  • Take a look at flask_cors.CORS section, the max_age part.

    max_age (timedelta, integer, string or None) –

    The maximum time for which this CORS request maybe cached. This value is set as the Access-Control-Max-Age header.

    According to the docs, you may need to init your CORS with this parameter.

    CORS(app, max_age=3600)