Earlier quoted context omitted.
Your understanding of strictly necessary is incorrect. You do not need to a/b test a website for it to function. It is optional. It doesn’t become legal just because your tech stack makes it difficult, or because you engineer the site not to work without a non-essential cookie. You could a/b test based on even or odd numbered IP address and not require consent to store a cookie. You can pass the referrer around via q…
>Your understanding of strictly necessary is incorrect. You do not need to a/b test a website for it to function. It is optional. It doesn’t become legal just because your tech stack makes it difficult, or because you engineer the site not to work without a non-essential cookie. No if a user clicks a button to see the prices at 10 euros but see the prices at 20 euros then that is an issue. That is a rather serious is…
I agree with you, that is a serious issue. But that issue is caused by your use of a/b testing, and if you solve that issue with a cookie then you need consent.
The ICO PECR guidance explicitly states that you can not rely on the strictly necessary exemption for analytics cookies.