Page uncached every single refresh

Hello,

while testing Thrive Comments plugin I’ve encountered an error while trying to load comments. After some investigation I’ve found that there’s 403 when the plugin is trying to access /wp-json/ through:

https://szmigieldesign.pl/wp-json/tcm/v1/comments/2643?_=1513422582563

Opening this URL resulted in error message that one-time cookie had expired.

I’ve checked what kind of cookies are being loaded with this request and it turned out these are:

__cfduid
tve_secret

So I’ve added them to LSCache exception, together with /wp-json/ as URL exception.

The problem with comment loading used to happen after around 24 hours from cache refresh (hence the expired cookie) and not enough time had passed to test if adding exceptions worked.

However, right now, when I check last line of every page source code I can see that page was uncached. Timestamp changes every refresh – does it mean that the cache isn’t working?

The page I need help with: [log in to see the link]