diff --git a/public/static/handle/js/handle.js b/public/static/handle/js/handle.js
index 789c8c4..c767a7a 100644
--- a/public/static/handle/js/handle.js
+++ b/public/static/handle/js/handle.js
@@ -854,7 +854,7 @@ $(function(){
         }
     })
     $(window).resize(function(){
-        requestData(ludan);
+        if(ludan) requestData(ludan);
     })
     audio.addEventListener("ended", nextAudio);
     getTime();
diff --git a/public/static/handle/js/handle_b.js b/public/static/handle/js/handle_b.js
index 9418eae..fe2a8aa 100644
--- a/public/static/handle/js/handle_b.js
+++ b/public/static/handle/js/handle_b.js
@@ -564,7 +564,7 @@ $(function(){
         }
     })
     $(window).resize(function(){
-        requestData(ludan);
+        if(ludan) requestData(ludan);
     })
     audio.addEventListener("ended", nextAudio);
     getTime();