diff options
| -rw-r--r-- | modules/caddyhttp/reverseproxy/healthchecks.go | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/modules/caddyhttp/reverseproxy/healthchecks.go b/modules/caddyhttp/reverseproxy/healthchecks.go index 888dadb79..ac92604ca 100644 --- a/modules/caddyhttp/reverseproxy/healthchecks.go +++ b/modules/caddyhttp/reverseproxy/healthchecks.go @@ -386,6 +386,7 @@ func (h *Handler) doActiveHealthCheck(dialInfo DialInfo, hostAddr string, upstre // set headers, using a replacer with only globals (env vars, system info, etc.) repl := caddy.NewReplacer() + repl.Set("http.reverse_proxy.active.target_host", hostAddr) for key, vals := range h.HealthChecks.Active.Headers { key = repl.ReplaceAll(key, "") if key == "Host" { |