diff --git a/app/src/main/java/com/github/catvod/spider/Bili.java b/app/src/main/java/com/github/catvod/spider/Bili.java
index d9c4635..2061fd7 100644
--- a/app/src/main/java/com/github/catvod/spider/Bili.java
+++ b/app/src/main/java/com/github/catvod/spider/Bili.java
@@ -42,9 +42,14 @@ public class Bili extends Spider {
         header.put("Referer", url);
     }
 
+    private void fetchExt() {
+        String result = OkHttpUtil.string(extend);
+        if (!TextUtils.isEmpty(result)) extend = result;
+    }
+
     private void fetchRule() throws Exception {
         if (header.containsKey("cookie") && header.get("cookie").length() > 0) return;
-        if (extend.startsWith("http")) extend = OkHttpUtil.string(extend);
+        if (extend.startsWith("http")) fetchExt();
         ext = new JSONObject(extend);
         setHeader();
     }
diff --git a/jar/custom_spider.jar b/jar/custom_spider.jar
index ca93186..6a6c24e 100644
Binary files a/jar/custom_spider.jar and b/jar/custom_spider.jar differ
diff --git a/jar/custom_spider.jar.md5 b/jar/custom_spider.jar.md5
index 5380a0d..120a4bb 100644
--- a/jar/custom_spider.jar.md5
+++ b/jar/custom_spider.jar.md5
@@ -1 +1 @@
-2d2edf4641fcba0a6f315a29cdbbef51
+940f5635d30de6ef9025c334afaf706b