fix(portal): 修复微官网在浏览器打开时的跨域与网络解析报错，支持默认名片平滑降级

backend/src/configuration.ts

@@ -8,7 +8,7 @@ import {
   MidwayWebRouterService,
 } from '@midwayjs/core';
 import * as koa from '@midwayjs/koa';
-// import * as crossDomain from '@midwayjs/cross-domain';
+import * as crossDomain from '@midwayjs/cross-domain';
 import * as validate from '@midwayjs/validate';
 import * as info from '@midwayjs/info';
 import * as staticFile from '@midwayjs/static-file';
@@ -27,7 +27,7 @@ import { TenantMiddleware } from './comm/middleware/tenant';
     // https://koajs.com/
     koa,
     // 是否开启跨域(注：顺序不能乱放！！！) http://www.midwayjs.org/docs/extensions/cross_domain
-    // crossDomain,
+    crossDomain,
     // 静态文件托管 https://midwayjs.org/docs/extensions/static_file
     staticFile,
     // orm https://midwayjs.org/docs/extensions/orm