PHP session cookies in a subdomain using IE11/Safari

  • Posted December 21, 2014

I’m losing the session between redirects in both Internet Explorer 11 and Safari (works fine on Chrome, Opera and Firefox).

When I try to login using the error occurs on IE/Safari, but even on them it works fine if I use the IP (

I’m trying to setup the session like:

session_set_cookie_params(3600, '/folder/');

I have already tried:

session_set_cookie_params(3600, '/folder/', ';
session_set_cookie_params(3600, '/folder/', ';
session_set_cookie_params(3600, '/folder/', ';  <-- without the preceding dot
session_set_cookie_params(3600, '/folder/', ';
ini_set("session.cookie_domain", ""); <-- before set_cookie_params

But none of them seems to work.


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I am not able to speak to Safari but IE11 and Edge have removed some cross domain functionality intentionally. More information about this change can be found here and here.