The ‘Domain’ Attribute
• With domain set, cookies will be sent to that domain
and all its subdomains
• The risk with subdomains is lower than when scoped to
parent domain, but still relevant
• Remove domain attribute to limit cookie to origin host
– Important note: IE will always send to subdomains regardless
As you have found, Joomla filters content to control the HTML content authors submit for security and maybe other reasons.
You can change Text Filter options for each user group in the Global Configuration but I think most editors filter out PHP code anyway.
There are a few ways around this problem.
Disable the Editor
Temporarily changing your user ...