And it’s fixed in master. Got the hearts from José himself. Feeling pretty good about myself

Tests issue is a bug. Trying to fix it here: https://github.com/phoenixframework/phoenix_live_view/issues/820

Not a lawyer, but the EU cookie law does not disallow all cookies. It explicitly allows those “strictly necessary for the delivery of a service requested by the user”, with one such example being a cookie used to implement a shopping cart in an e-commerce application. As long as you don’t use the session cookie for other tracking purposes not necessary for the functioning of your app, you should be fine.

The session cookie is in most cases “strictly necessary”, as your app cannot really work without, if it has to maintain any state. Conversely, third party cookies and tracking pixels are not strictly necessary, and would definitely fall into the ones you should be able to opt-out from. In between, there is a large gray area.

Here’s Wikipedia on that: https://en.wikipedia.org/wiki/Privacy_and_Electronic_Communications_Directive_2002#Cookies

The phoenix part is quite simple: remove the :fetch_session plug and all plugs depending on it. Also do not manually set cookies / use the session.

Same should be possible for live_view I guess, but again you cannot use any stuff depending on it, which by now should only be flash messages.