Suddenly a few days ago I have noticed that in my website, when I complete a form of a place for example (POST) and then I do a redirect to view that place, the user session gets lost. If I refresh that page, I'm connected again. It happens also in another form+redirect.
That only happens on the production server. On staging (same configuration as production) and local is working fine.
My stack in production is Apache, memcache (sessions), PHP, Symfony1.4, MySQL.
Any idea on where I should be looking? Apache, what? Memcache?
- It's not suhosin, as I haven't enabled the extension
- I happens only after POSTs and a Header redirect