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/modules/es.string.link.js

@@ -0,0 +1,12 @@
+'use strict';
+var $ = require('../internals/export');
+var createHTML = require('../internals/create-html');
+var forcedStringHTMLMethod = require('../internals/string-html-forced');
+
+// `String.prototype.link` method
+// https://tc39.es/ecma262/#sec-string.prototype.link
+$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('link') }, {
+  link: function link(url) {
+    return createHTML(this, 'a', 'href', url);
+  }
+});