fix

app.py

@@ -298,7 +298,7 @@ html_template = """
                 <button onclick="fillTopic('Using LLM-based agent to generate idea')">Using LLM-based agent to generate idea</button>
             </div>
         </div>
-        <div id="loading" class="loading">{{ loading_text }}</div>
+        <div id="loading" class="loading" display="none">{{ loading_text }}</div>
         {% if error %}
         <div class="error">
             <div class="box">
@@ -307,17 +307,18 @@ html_template = """
             </div>
         </div>
         {% endif %}
-        hideLoading();
     </div>
-<script>
+    <script>
         async function getUserId() {
-            // 清除 sessionStorage 中的 user_id
-            sessionStorage.removeItem("user_id");
-            // 请求新的 user_id
-            const response = await fetch("/user_id");
-            const data = await response.json();
-            const userId = data.user_id;
-            sessionStorage.setItem("user_id", userId);
+            // 检查 sessionStorage 中是否有 user_id
+            let userId = sessionStorage.getItem("user_id");
+            if (!userId) {
+                // 请求新的 user_id
+                const response = await fetch("/user_id");
+                const data = await response.json();
+                userId = data.user_id;
+                sessionStorage.setItem("user_id", userId);
+            }
             console.log("User ID:", userId);
         }
         window.onload = getUserId;
@@ -381,6 +382,7 @@ async def get_user_id():
     user_id = str(uuid.uuid4())
     return {"user_id": user_id}
 
+
 @app.get("/", response_class=HTMLResponse)
 def form_get():
     return Template(html_template).render(idea= "This is a example of the idea geneartion", error=None, reply_count=reply_count,button_text="Generate",loading_text="Generating content, Usually takes 2-3 minutes, please wait...")