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-pure/internals/get-mode-option.js

@@ -0,0 +1,8 @@
+'use strict';
+var $TypeError = TypeError;
+
+module.exports = function (options) {
+  var mode = options && options.mode;
+  if (mode === undefined || mode === 'shortest' || mode === 'longest' || mode === 'strict') return mode || 'shortest';
+  throw new $TypeError('Incorrect `mode` option');
+};