diff --git a/stream.py b/stream.py
index f76d364..e03214a 100755
--- a/stream.py
+++ b/stream.py
@@ -211,9 +211,9 @@ class MainHandler(tornado.web.RequestHandler):
                 ldata["proxied"] = isinstance(proxy.proxy, str)
                 links = [ldata]
                 resp = requests.post(proxy_server, json=links)
-                if isinstance(resp.text, list):
+                if isinstance(resp.text, str):
                     new_links = json.loads(resp.text)
-                    if len(new_links) == 1:
+                    if isinstance(new_links, list) and len(new_links) == 1:
                         upstream = new_links.pop()
             if data is None:
                 self.redirect(upstream, status=303)