How to make E-Tag to work on Oracle Commerce Cloud requests?

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Hi,

I noticed all requests on OCC contain the etag hash in the response header. I tried to make the etag to work by sending in the request the If-None-Match sending back the hash but no 304 status code was returned, 200 was returned. Is there a way to enable etag in the server?

It's reproducible with any request in the ccstoreui.

Thanks,

Douglas.