Function Copy

httpheaders/copy.go:8–15

Copy copies specified headers from one header to another.

(from, to http.Header, only []string)

// Copy copies specified headers from one header to another.
func Copy(from, to http.Header, only []string) {
	for _, key := range only {
		key = http.CanonicalHeaderKey(key)
		if values := from[key]; len(values) > 0 {
			to[key] = append([]string(nil), values...)
		}
	}
}

// CopyAll copies all headers from one header to another.
func CopyAll(from, to http.Header, overwrite bool) {