When I try to click on the Google g+ button (found on some sites alongside Facebook Like and Twitter Share et.al), I am told that this requires 3rd party cookies, which I always disable in all browsers I use; this is non-negotiable.
What do I put into the hostname pattern in the cookie and site data exceptions in Google Chrome to enable g+1 without enabling anything else?
Temporarily enabling 3rd party cookies just to click on g+1 is, obviously, not a good solution.