Fix content-type

cmd/keyserver/keyserver.go

@@ -159,7 +159,7 @@ func keyserverV2(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusInternalServerError)
 		return
 	}
-	w.Header().Add("Content-Encoding", "application/json")
+	w.Header().Add("Content-Type", "application/json; charset=utf-8")
 	w.Write(b)
 }