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Hello @kapvin
Thank you for reaching out and I am happy to help!
The “Cache URIs with query string variables” option is not available with the Disk: Enhanced caching method.
In order to enable this option, you need to use DIsk: Basic, or memory-based caching methods like Redis, Memcached or APC.
You can, however, add the specific query strings that you want to be cached in Performance>Page Cache>Advanced>Accepted query strings: field even with the Disk: Enhanced option.
I hope this helps!
Thanks!
