挂载外部配置文件到window对象上

src/template.html

@@ -12,8 +12,6 @@
       <strong>We're sorry but app doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
     </noscript>
     <div id="app"></div>
-    <!-- <link rel="stylesheet" href="<%= BASE_URL %>assets/styles/loader.css">
-    <div class="loader" id="app-loader"></div> -->
-    <!-- built files will be auto injected -->
+    <script src="./environments/environment.js"></script>
   </body>
 </html>