pass proxy address instead of object

backend/stream.py

@@ -130,7 +130,7 @@ class UpstreamHandler():
             if isinstance(proxy_list, list):
                 futures = []
                 for current in proxy_list:
-                    future = asyncio.create_task(self.test_socks(current))
+                    future = asyncio.create_task(self.test_socks(current.proxy))
                     futures.append(future)
                 for future in asyncio.as_completed(futures):
                     success, current = await future