fix default frontend_base_url

Author: jean-gui

config/services.yaml

@@ -2,7 +2,7 @@ parameters:
     login_url: https://auth.w3.org/
     login_redirect_param: url
     logout_url: https://auth.w3.org/loggedin
-    frontend_base_url: https://www.w3.org/
+    frontend_base_url: https://www.w3.org
 services:
     W3C\WebsiteTemplatesBundle\Service\Utils:
         public: false