更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/core-js/internals/well-known-symbol-define.js

@@ -0,0 +1,12 @@
+'use strict';
+var path = require('../internals/path');
+var hasOwn = require('../internals/has-own-property');
+var wrappedWellKnownSymbolModule = require('../internals/well-known-symbol-wrapped');
+var defineProperty = require('../internals/object-define-property').f;
+
+module.exports = function (NAME) {
+  var Symbol = path.Symbol || (path.Symbol = {});
+  if (!hasOwn(Symbol, NAME)) defineProperty(Symbol, NAME, {
+    value: wrappedWellKnownSymbolModule.f(NAME)
+  });
+};