Modified JSON response

Application Performance
1

What is the name of the domain?

What is the issue you’re encountering

Hello. I have no any request/response transformation rules, but i found a strange behavior.
My backend responds with json payload key acme and filled values : {"acme": {"active": true, "expires": "2025-09-22T10:17:13Z"}}
But as far as i switch traffic via Cloudflare i got empty values {"acme": {}}.
Does any default rule that modify response or may be ACME is some reserved word?

2

What does your backend do with the request to get the response? If it makes a subrequest to a hostname that is proxied, maybe Cloudflare blocks the request and the subrequest returns blank.

3

Thnx, the scheme is follow
browser → Cloudflare (LoadBalancers) → Front → Back(API) . There is no any external proxies between front and back.
The most weird thing, if i go to Load Balancer’s fqdn (lb.domain.name) - all ok, but if i go to app.domain.name → CNAME lb.domain.name - response changed.

4

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