Cloudflare APO not working properly on Variable Products

I purchased Cloudflare APO and its working fine but in Woocommerce Variable Products variations are cached by Cloudflare APO even OUT OF STOCKS are available for purchase. please fix this issue…

Thanks

and if I purge cache from plugin… then out of stocks items are available for puchase that means any one can checkout that variation from woocommerce variable product… this is serious issue please fix this… thanks…