Header is not reliable?

General
1

Hello, I am making a website and it relies on User-Agent & custom headers. The custom header doesn’t seem to work (My website can’t detect that) and sometimes the User-Agent doesn’t work. (I am sure because I have already done some tests before)

I have read the Cloudflare Docs and they told me that they pass all HTTP Headers but I can’t seem to detect it here

  • The User-Agent and custom header check works fine in the test environment (without Cloudflare)

Any ideas?

2

Define doesn’t work. Are they not present or different than you expect? Is this happening on your requests or requests by others?

3

Every request, It seems like Cloudflare didn’t forward the HTTP Headers.

Like if I add a custom header
testheader: "data"
the origin server cannot detect that using getallheaders()

4

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