diff --git a/apps/assets/utils.py b/apps/assets/utils.py
index 305bcbf36..3ea66ba6c 100644
--- a/apps/assets/utils.py
+++ b/apps/assets/utils.py
@@ -54,10 +54,6 @@ class TreeService(Tree):
             tree.init_assets()
         return tree
 
-    def init_assets_async(self):
-        t = threading.Thread(target=self.init_assets)
-        t.start()
-
     def init_assets(self):
         from orgs.utils import tmp_to_root_org
         self.all_nodes_assets_map = {}
diff --git a/apps/orgs/views.py b/apps/orgs/views.py
index 01715106d..d599fbab3 100644
--- a/apps/orgs/views.py
+++ b/apps/orgs/views.py
@@ -17,7 +17,7 @@ class SwitchOrgView(DetailView):
         oid = str(self.object.id)
         request.session['oid'] = oid
         host = request.get_host()
-        referer = request.META.get('HTTP_REFERER')
+        referer = request.META.get('HTTP_REFERER', '')
         if referer.find(host) == -1:
             return redirect(reverse('index'))
         if UUID_PATTERN.search(referer):
diff --git a/apps/perms/utils/asset_permission.py b/apps/perms/utils/asset_permission.py
index b23e31e8b..21b9d8094 100644
--- a/apps/perms/utils/asset_permission.py
+++ b/apps/perms/utils/asset_permission.py
@@ -158,9 +158,10 @@ class AssetPermissionUtilV2(AssetPermissionUtilCacheMixin):
 
     @timeit
     def filter_permissions(self, **filters):
-        filters_json = json.dumps(filters, sort_keys=True)
+        self.cache_policy = '0'
+        # filters_json = json.dumps(filters, sort_keys=True)
         self._permissions = self.permissions.filter(**filters)
-        self._filter_id = md5(filters_json.encode()).hexdigest()
+        # self._filter_id = md5(filters_json.encode()).hexdigest()
 
     @lazyproperty
     def user_tree(self):