Python Flask How to redirect to the previous page?

Question

Flask

How to determine the previous page on a new page and redirect to it?

Answer 1

return '<script>document.location.href = document.referrer</script>'

Answer 2

Pass get as parameter

Answer 3

If I'm not mistaken

from flask import redirect, request

@app.route('/')
def redirect():
    return redirect(request.url, code=302)