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-rw-r--r--modules/caddyhttp/reverseproxy/caddyfile.go8
1 files changed, 8 insertions, 0 deletions
diff --git a/modules/caddyhttp/reverseproxy/caddyfile.go b/modules/caddyhttp/reverseproxy/caddyfile.go
index f4556ea..4a69287 100644
--- a/modules/caddyhttp/reverseproxy/caddyfile.go
+++ b/modules/caddyhttp/reverseproxy/caddyfile.go
@@ -15,6 +15,7 @@
package reverseproxy
import (
+ "log"
"net"
"net/http"
"net/url"
@@ -497,6 +498,13 @@ func (h *Handler) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
case 1:
err = headers.CaddyfileHeaderOp(h.Headers.Request, args[0], "", "")
case 2:
+ // some lint checks, I guess
+ if strings.EqualFold(args[0], "host") && (args[1] == "{hostport}" || args[1] == "{http.request.hostport}") {
+ log.Printf("[WARNING] Unnecessary header_up ('Host' field): the reverse proxy's default behavior is to pass headers to the upstream")
+ }
+ if strings.EqualFold(args[0], "x-forwarded-proto") && (args[1] == "{scheme}" || args[1] == "{http.request.scheme}") {
+ log.Printf("[WARNING] Unnecessary header_up ('X-Forwarded-Proto' field): the reverse proxy's default behavior is to pass headers to the upstream")
+ }
err = headers.CaddyfileHeaderOp(h.Headers.Request, args[0], args[1], "")
case 3:
err = headers.CaddyfileHeaderOp(h.Headers.Request, args[0], args[1], args[2])