Symfony 3 sharing cookies across sub-domains?

Question

I want to share a cookie across any subdomain. This should then allow me to keep the session. I am using the Symfony framework version 3.0.

I've read that you should set the following:

## app/config/config.yml
   session:
       cookie_domain: .localhost

I tried multiple variations on this but none of them change anything. the domain associated with the cookie won't change. Any ideas how this should be done?? What am I missing.

Cataclinal

The cookie won't change. You need to delete your cookie and log back. I just tested it, it works fine – Woolson

I deleted my cookie and now no cookie will come back but when i remove the cookie domain property i get a cookie – Cataclinal

I found a gist where the user use thoses params, can you try? cookie_lifetime: 0 save_path: %kernel.root_dir%/var/sessions cookie_domain: .my-domain.com name: SFSESSID – Woolson

Answer 1

To be sure you need to delete your cookie and log back.

session:
    cookie_lifetime: 0
    save_path: %kernel.root_dir%/var/sessions
    cookie_domain: .my-domain.com
    name: SFSESSID

Woolson

This works flawlessly. Please remember to remove your cookie storage before next login or you won't be able to login (with CSRF enabled). This is also a problem on already-deployed systems (you won't ask your users to clear their cookies, right?), so easiest solution is to change session.name parameter to other than previous (in most cases PHPSESSID). – Jelly

Symfony 5.4 here, I had to do the same renaming thing to get login working. – Font