Sub-domain to parent domain 403 issue

We have a java application on a sub-domain that requests images from a Wordpress application on the root domain.

However, at some point, the image requests made from the sub-domain to the parent domain began returning 403 denied errors.

Does anybody know of any config settings within cloudflare that might be causing this issue? We’re unsure if it’s a hotlinking issue or an Apache config issue or other.

I’d expect that if Cloudflare is blocking, you’d see this reflected in a Firewall Events Activity Log entry.

If you can replicate this, you might try checking your browser’s Dev Tools to take a closer look at the 403 response, or even open that image in a new tab to see if it loads.

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