added missing default value in config ui

html_config/index.html

@@ -345,6 +345,9 @@
                             ecityruf: {
                                 enabled: null, duplexTimeout: null,
                             },
+                            emPuppettering: {
+                                enabled: null, duplexTimeout: null,
+                            },
                         }
                     },
                 }