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/own-keys.js

@@ -0,0 +1,15 @@
+'use strict';
+var getBuiltIn = require('../internals/get-built-in');
+var uncurryThis = require('../internals/function-uncurry-this');
+var getOwnPropertyNamesModule = require('../internals/object-get-own-property-names');
+var getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');
+var anObject = require('../internals/an-object');
+
+var concat = uncurryThis([].concat);
+
+// all object keys, includes non-enumerable and symbols
+module.exports = getBuiltIn('Reflect', 'ownKeys') || function ownKeys(it) {
+  var keys = getOwnPropertyNamesModule.f(anObject(it));
+  var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;
+  return getOwnPropertySymbols ? concat(keys, getOwnPropertySymbols(it)) : keys;
+};