Cloudflare does not send Accept-Ranges header


My server is sending a file with the header “Content-Type: application/force-download” and also with “Accept-Ranges: bytes”, but the cloudflare proxy is not sending the header “Accept-Ranges: bytes” to the client. Is it some kind of cloudflare bug?

This is causing various issues and abnormal behavior in browsers and other http clients. I noticed that Cloudflare doesn’t send the header only when the header “CF-Cache-Status” has the value “MISS”.

Sounds like it could related to this post:

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