My site gets a cookie error in the console:

My site gets a cookie error in the console:

I use a plug-in called:
http://3dflipbook.net/


I decided to Inspect the page and found these errors...

===
query-migrate.min.js?ver=1.4.1:2

JQMIGRATE: Migrate is installed, version 1.4.1

A cookie associated with a cross-site resource at http://www.pagespeed-mod.com/ was set without the `SameSite` attribute. A future release of Chrome will only deliver cookies with cross-site requests if they are set with `SameSite=None` and `Secure`. You can review cookies in developer tools under Application>Storage>Cookies and see more details at https://www.chromestatus.com/feature/5088147346030592 and https://www.chromestatus.com/feature/5633521622188032.
pdf.worker.js:1

The provided value 'moz-chunked-arraybuffer' is not a valid enum value of type XMLHttpRequestResponseType.
e @ pdf.worker.js:1

====

This is a new site, but I am not promoting it yet. I have no Terms of Use, but plan to do that. I guess what I can conclude from this error is that the plug-in (mention above) uses a cookie.

What shall I do about this error? What does it mean?

Thanks