how to set cookie for cloudfront url from django

Question

In AWS docs it says, you can set cookie to their domain like this:

Set-Cookie: CloudFront-Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cDovL2QxMTExMTFhYmNkZWY4LmNsb3VkZnJvbnQubmV0L2dhbWVfZG93bmxvYWQuemlwIiwiQ29uZGl0aW9uIjp7IklwQWRkcmVzcyI6eyJBV1M6U291cmNlSXAiOiIxOTIuMC4yLjAvMjQifSwiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE0MjY1MDAwMDB9fX1dfQ__; Domain=d111111abcdef8.cloudfront.net; Path=/; Secure; HttpOnly
Set-Cookie: CloudFront-Signature=dtKhpJ3aUYxqDIwepczPiDb9NXQ_; Domain=d111111abcdef8.cloudfront.net; Path=/; Secure; HttpOnly
Set-Cookie: CloudFront-Key-Pair-Id=K2JCJMDEHXQW5F; Domain=d111111abcdef8.cloudfront.net; Path=/; Secure; HttpOnly

but my django code:

response.set_cookie(
   'CloudFront-Policy',
   'eyJTdGF0ZW1lbnQ...',
    domain=settings.AWS_CLOUDFRONT_DOMAIN,
    secure=True,
    httponly=True
)

not setting the cookie to their domain. I know it is security issue, but why AWS mentions this in documentation? any help appreciated.

Answer 1

okay, at the end, the solution was to use cname with altername domain. :/ turned out to be the right way anyway.