Vimeo cookies are still being set after declining

Let's try to find the problem.

1) Are all src-attributes correct changed to data-src?

Please check if in your markup and look in your browser's developer console if no data is loaded from vimeo.

2) Did you test in a new private tab in your browser?

Often old cookies exists for your domain or subdomain, so please open a new private tab and delete cookies.

3) Which entity / field do you use?

Can you please post the config (like core.entity_view_display.media.embed.default.yml)?

Sorry, there is a correction!

I was using the "Blazy OEmbed" form the blazy module.

Klaro works if I use "oEmbed content" from the core media module regardless of "loading" option set to "lazy" or "eager".

So, it works as designed when using core formatter.

Any option/plan to support the blazy → module?

Thank you for feedback. I changed this issue to a feature request.

We will have a look if we can support blazy.