diff --git a/dsLightRag/Start.py b/dsLightRag/Start.py
index 20e03a0a..44968400 100644
--- a/dsLightRag/Start.py
+++ b/dsLightRag/Start.py
@@ -4,6 +4,7 @@ import tempfile
 import urllib
 import uuid
 from io import BytesIO
+from urllib import request
 
 import fastapi
 import uvicorn
@@ -277,12 +278,11 @@ async def update_knowledge(request: fastapi.Request):
         return {"code": 1, "msg": str(e)}
 
 
-@app.route('/api/render_html', methods=['POST'])
-def render_html():
-    html_content = request.json.get('html_content')
-    if not html_content:
-        return jsonify({'success': False, 'error': 'No HTML content provided'})
-    
+@app.post("/api/render_html")
+async def render_html(request: fastapi.Request):
+    data = await request.json()
+    html_content = data.get('html_content')
+
     # 创建临时文件
     filename = f"relation_{uuid.uuid4().hex}.html"
     filepath = os.path.join('static/temp', filename)
@@ -294,10 +294,10 @@ def render_html():
     with open(filepath, 'w', encoding='utf-8') as f:
         f.write(html_content)
     
-    return jsonify({
+    return {
         'success': True,
         'url': f'/static/temp/{filename}'
-    })
+    }
 
 
 if __name__ == "__main__":