[melx]

> Adding a sponsor header is harmless

Harmless or not - I think it's worth looking past this point. Maybe the http header was a way for them to search the internet and find *commercial* sites that didn't pay for Caddy license? Not very pro behaviour.

[sergiosgc]

Caddy is licensed under the Apache license, which allows for commercial use. No one is infringing by not paying for the commercial version.

[melx]

Well, we're in 2017 (read the thread I posted above), and in that year Caddy was distributing[0] the binary as licensed product. Apache licence applied to its source-code only (e.g. when you build the server from source - which only few people did).

[0] https://web.archive.org/web/20180216153020/https://caddyserv...

[sergiosgc]

Thanks for the background. I didn't know it used to be like that. It's a funky licensing scheme if I ever saw one.