So siehts ganz gut aus !

node_modules/core-js/modules/es6.reflect.get.js

@@ -0,0 +1,21 @@
+// 26.1.6 Reflect.get(target, propertyKey [, receiver])
+var gOPD = require('./_object-gopd');
+var getPrototypeOf = require('./_object-gpo');
+var has = require('./_has');
+var $export = require('./_export');
+var isObject = require('./_is-object');
+var anObject = require('./_an-object');
+
+function get(target, propertyKey /* , receiver */) {
+  var receiver = arguments.length < 3 ? target : arguments[2];
+  var desc, proto;
+  if (anObject(target) === receiver) return target[propertyKey];
+  if (desc = gOPD.f(target, propertyKey)) return has(desc, 'value')
+    ? desc.value
+    : desc.get !== undefined
+      ? desc.get.call(receiver)
+      : undefined;
+  if (isObject(proto = getPrototypeOf(target))) return get(proto, propertyKey, receiver);
+}
+
+$export($export.S, 'Reflect', { get: get });