diff --git a/searx/webapp.py b/searx/webapp.py
index 58b9df17e..d850c66ff 100755
--- a/searx/webapp.py
+++ b/searx/webapp.py
@@ -1287,6 +1287,9 @@ function modal_open(url, num)
         fulltext = fulltext.replaceAll("\n\n","\n").replaceAll("\n\n","\n");
         const delimiter = /[?!;\?\n。；！………]/g
         fulltext = fulltext.split(delimiter);
+        fulltext = fulltext.filter(function(item) {
+        return item && item.trim(); // 去掉空值和空格
+        });
         optkeytext = {
             method: "POST",
             headers: headers,
@@ -1845,16 +1848,17 @@ prev_chat = prev_chat+'<div class="chat_question">'+document.querySelector("#pro
 
 function send_chat(elem)
 {
+  if(document.querySelector("#modal").style.display == 'block')
+  {
+    return send_modalchat(elem);
+  }
   let word = document.querySelector("#chat_input").value;
   if(elem){word = elem.textContent;elem.remove()}
   if(word.length==0 || word.length > 140) return;
   if(word_last.length>500)word_last.slice(500)
   if  (word.includes("你能") || word.includes("讲讲") || word.includes("扮演") || word.includes("模仿") || word.includes("请推荐") || word.includes("帮我") || word.includes("写一段") || word.includes("写一个") || word.includes("请问") || word.includes("请给") || word.includes("请你") || word.includes("请推荐") || word.includes("能帮忙") || word.includes("介绍一下") || word.includes("为什么") || word.includes("什么是") || word.includes("有什么") || word.includes("怎样") || word.includes("给我") || word.includes("如何") || word.includes("谁是") || word.includes("查询") || word.includes("告诉我") || word.includes("查一下") || word.includes("找一个") || word.includes("什么样") || word.includes("哪个") || word.includes("哪些") || word.includes("哪一个") || word.includes("哪一些") || word.includes("啥是") || word.includes("为啥") || word.includes("怎么"))
     return send_webchat(elem);
-  if(document.querySelector("#modal").style.display == 'block')
-  {
-    return send_modalchat(elem);
-  }
+
   if(lock_chat!=0) return;
   lock_chat = 1;
   const knowledge = document.querySelector("#chat").innerHTML.replace(/<a.*?>.*?<\/a.*?>/g, '').replace(/<hr.*/gs, '').replace(/<[^>]+>/g,"").replace(/\n\n/g,"\n") +"\n以上是关键词“" + search_queryquery + "”的搜索结果\n"
diff --git a/searx/webapp1.py b/searx/webapp1.py
index 58b9df17e..d850c66ff 100644
--- a/searx/webapp1.py
+++ b/searx/webapp1.py
@@ -1287,6 +1287,9 @@ function modal_open(url, num)
         fulltext = fulltext.replaceAll("\n\n","\n").replaceAll("\n\n","\n");
         const delimiter = /[?!;\?\n。；！………]/g
         fulltext = fulltext.split(delimiter);
+        fulltext = fulltext.filter(function(item) {
+        return item && item.trim(); // 去掉空值和空格
+        });
         optkeytext = {
             method: "POST",
             headers: headers,
@@ -1845,16 +1848,17 @@ prev_chat = prev_chat+'<div class="chat_question">'+document.querySelector("#pro
 
 function send_chat(elem)
 {
+  if(document.querySelector("#modal").style.display == 'block')
+  {
+    return send_modalchat(elem);
+  }
   let word = document.querySelector("#chat_input").value;
   if(elem){word = elem.textContent;elem.remove()}
   if(word.length==0 || word.length > 140) return;
   if(word_last.length>500)word_last.slice(500)
   if  (word.includes("你能") || word.includes("讲讲") || word.includes("扮演") || word.includes("模仿") || word.includes("请推荐") || word.includes("帮我") || word.includes("写一段") || word.includes("写一个") || word.includes("请问") || word.includes("请给") || word.includes("请你") || word.includes("请推荐") || word.includes("能帮忙") || word.includes("介绍一下") || word.includes("为什么") || word.includes("什么是") || word.includes("有什么") || word.includes("怎样") || word.includes("给我") || word.includes("如何") || word.includes("谁是") || word.includes("查询") || word.includes("告诉我") || word.includes("查一下") || word.includes("找一个") || word.includes("什么样") || word.includes("哪个") || word.includes("哪些") || word.includes("哪一个") || word.includes("哪一些") || word.includes("啥是") || word.includes("为啥") || word.includes("怎么"))
     return send_webchat(elem);
-  if(document.querySelector("#modal").style.display == 'block')
-  {
-    return send_modalchat(elem);
-  }
+
   if(lock_chat!=0) return;
   lock_chat = 1;
   const knowledge = document.querySelector("#chat").innerHTML.replace(/<a.*?>.*?<\/a.*?>/g, '').replace(/<hr.*/gs, '').replace(/<[^>]+>/g,"").replace(/\n\n/g,"\n") +"\n以上是关键词“" + search_queryquery + "”的搜索结果\n"