perf: 优化 `initRouter` ，兼容 `sso` 场景

src/router/utils.ts

@@ -184,30 +184,35 @@ function handleAsyncRoutes(routeList) {
   addPathMatch();
 }
 
-/** 初始化路由 */
+/** 初始化路由（`new Promise` 写法防止在异步请求中造成无限循环）*/
 function initRouter() {
-  return new Promise(resolve => {
   if (getConfig()?.CachingAsyncRoutes) {
     // 开启动态路由缓存本地sessionStorage
     const key = "async-routes";
     const asyncRouteList = storageSession.getItem(key) as any;
-      if (asyncRouteList?.length > 0) {
+    if (asyncRouteList && asyncRouteList?.length > 0) {
+      return new Promise(resolve => {
         handleAsyncRoutes(asyncRouteList);
+        resolve(router);
+      });
     } else {
+      return new Promise(resolve => {
         getAsyncRoutes().then(({ data }) => {
           handleAsyncRoutes(data);
           storageSession.setItem(key, data);
+          resolve(router);
+        });
       });
     }
-      resolve(router);
   } else {
+    return new Promise(resolve => {
       getAsyncRoutes().then(({ data }) => {
         handleAsyncRoutes(data);
         resolve(router);
       });
-    }
     });
   }
+}
 
 /**
  * 将多级嵌套路由处理成一维数组