Add an unauthenticated test endpoint

authenticated.go

@@ -8,6 +8,10 @@ import (
 )
 
 func authenticated(w http.ResponseWriter, r *http.Request) {
+	if r.URL.Path == "/test" {
+		w.Write([]byte("It's working!"))
+		return
+	}
 	// defense in depth
 	if httpPassword == "" {
 		http.Error(w, "httpPassword not set", http.StatusInternalServerError)