fix serialization bug

backend/config.py

@@ -115,9 +115,7 @@ class ProxyElem:
 
         try:
             async with self.local() as session:
-                logger.info(request_data.json())
-                logger.info(request_data)
-                resp = await session.post(proxy_server, json=request_data.dict())
+                resp = await session.post(proxy_server, json=json.loads(request_data.json()))
                 response_data = cast(
                     ProxyResponse, ProxyResponse.parse_raw(await resp.text())
                 )
@@ -224,9 +222,6 @@ for proxy_provider in proxies.values():
             streamlink_sessions[proxy_elem.proxy].set_option(
                 "http-proxy", "socks5://" + proxy_elem.proxy
             )
-            streamlink_sessions[proxy_elem.proxy].set_option(
-                "https-proxy", "socks5://" + proxy_elem.proxy
-            )
 
 if icecast_server is not None and stream_server is not None:
     try: