diff --git a/api/app.py b/api/app.py
index 72e9c3a3e..ec16cb0bc 100644
--- a/api/app.py
+++ b/api/app.py
@@ -133,8 +133,10 @@ def config(url):
             param = urlparse(encoded_url.split('&', 1)[-1])
             request.args = dict(item.split('=') for item in param.path.split('&'))
             if request.args.get('prefix'):
+                i = 1
                 request.args['prefix'] = unquote(request.args['prefix'])
             if request.args.get('file'):
+                i = 1
                 index = request.args.get('file').find(":")
                 next_index = index + 2
                 if index != -1:
@@ -145,14 +147,17 @@ def config(url):
             param = urlparse(query_string.split('&', 1)[-1])
             request.args = dict(item.split('=') for item in param.path.split('&'))
             if request.args.get('prefix'):
+                i = 1
                 request.args['prefix'] = unquote(request.args['prefix'])
             if request.args.get('file'):
+                i = 1
                 index = request.args.get('file').find(":")
                 next_index = index + 2
                 if index != -1:
                     if next_index < len(request.args['file']) and request.args['file'][next_index] != "/":
                         request.args['file'] = request.args['file'][:next_index-1] + "/" + request.args['file'][next_index-1:]
             elif 'file=' in query_string:
+                i = 1
                 index = query_string.find("file=")
                 request.args['file'] = query_string.split('file=')[-1].split('&', 1)[0]
     #print (f"request.args: {request.args}")
@@ -189,7 +194,6 @@ def config(url):
     # 从url中删除这些字符串
     for param in params_to_remove:
         if param in full_url:
-            i = 1
             full_url = full_url.replace(param, '')
     if request.args.get('url'):
         full_url = full_url