caddyhttp: Fix trailers when recording responses (fixes #3236)

1 files changed, 0 insertions, 13 deletions

diff --git a/modules/caddyhttp/caddyhttp.go b/modules/caddyhttp/caddyhttp.go
index 6dbf7738d..fda7a929f 100644
--- a/modules/caddyhttp/caddyhttp.go
+++ b/modules/caddyhttp/caddyhttp.go
@@ -165,19 +165,6 @@ func (ws WeakString) String() string {
 	return string(ws)
 }
 
-// CopyHeader copies HTTP headers by completely
-// replacing dest with src. (This allows deletions
-// to be propagated, assuming src started as a
-// consistent copy of dest.)
-func CopyHeader(dest, src http.Header) {
-	for field := range dest {
-		delete(dest, field)
-	}
-	for field, val := range src {
-		dest[field] = val
-	}
-}
-
 // StatusCodeMatches returns true if a real HTTP status code matches
 // the configured status code, which may be either a real HTTP status
 // code or an integer representing a class of codes (e.g. 4 for all