Flask/Werkzeug how to attach HTTP content-length header to file download

Question

I am using Flask (based on Werkzeug) which uses Python.

The user can download a file, I\'m using the send_from_directory-function.

However when actually down

Answer 1

I needed this also, but for every requests, so here's what I did (based on the doc) :

@app.after_request
def after_request(response):
    response.headers.add('Access-Control-Allow-Origin', '*')
    return response