Feature request from micmeister59, posted on GitHub Oct 19, 2015
With Magento 1, it's hard to rename the session cookie name ("frontend" and "adminhtml"). It's a constant in controller without the possibility to change names. It would be nice to change that in backoffice.
Comment from mblarsen, posted on GitHub Oct 31, 2015
+1 with option of scope
Comment from piotrekkaminski, posted on GitHub May 10, 2016
@micmeister59 @mblarsen can you provide some information why it would be useful? What is the use case? Is it security? Is it not conflicting with other tools?
Comment from micmeister59, posted on GitHub May 11, 2016
It is useful because we have three websites with the same domains. Only the subdomain changes. The websites 1 and 2 (the same magento) have the common cart. It is why we choosed the same domain for cookie domain. The website 3 (an other magento) is different compared to websites 1 and 2 but it has the same domain to keep brand image for client : with the same frontend, we have conflicts.
I thinf it's safe because it's just change session cookie name (http://php.net/manual/en/function.session-name.php).