Matthew Holt 7c68809f4e
reverseproxy: Fix overwriting of max_idle_conns_per_host (closes #4201)
Also split the Caddyfile subdirective keepalive_idle_conns into two properties so the conns and conns_per_host can be set separately.

This is technically a breaking change, but probably anyone who this breaks already had a broken config anyway, and silently fixing it won't help them fix their configs.
2021-06-15 14:54:48 -06:00
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