This sets the third-party cookie policy.
- I created a new ThirdPartyCookiePolicy() class, since this setting seems to be
unique in the way it is set...
- I set the default to 'never', which is the most secure/private setting, but
*may* break *some* features of a (very) limited number of sites; these are
usually "non-critical" features.
For example, on Stack Exchange sites you're logged in all 200+ sites if you
sign in on one of them, this features required 3rd party cookies. You can
still sign in with out, but you have to do so 200+ times (this is actually the
only example I've ever noticed).
AFAIK all "major" browsers accept 3rd-party cookies by default, except for
Safari. Firefox also made this change, but reversed it (see:
https://brendaneich.com/2013/05/c-is-for-cookie/), but they don't offer any
good arguments to *not* have it IMHO, at least not that I could find.
In any case, in my humble opinion "secure and private by default" is the best
way to ship. But you're of course free to change it if you disagree ;-)
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