diff --git a/FastGithub/appsettings.json b/FastGithub/appsettings.json
index 87f6d72..294c484 100644
--- a/FastGithub/appsettings.json
+++ b/FastGithub/appsettings.json
@@ -58,6 +58,9 @@
       "*.gravatar.com": {
         "TlsSni": true,
         "Destination": "https://fdn.geekzu.org/"
+      },
+      "i.stack.imgur.com": {
+        "Destination": "http://localhost/" // 没有对应的资源，阻断请求
       }
     }
   },