From 451f8acf31a82995dea9466167e37baf25dd5827 Mon Sep 17 00:00:00 2001
From: Debby <debby@glance.net>
Date: Wed, 10 Jun 2020 13:58:08 -0400
Subject: [PATCH] Set follow_redirects to False for websocket connections to
 prevent silent failure on redirect

Partial fix for issue #2405
---
 tornado/websocket.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tornado/websocket.py b/tornado/websocket.py
index 7b77850a6c..058f804030 100644
--- a/tornado/websocket.py
+++ b/tornado/websocket.py
@@ -1334,6 +1334,10 @@ def websocket_connect(url, callback=None, connect_timeout=None,
         request = httpclient.HTTPRequest(url, connect_timeout=connect_timeout)
     request = httpclient._RequestProxy(
         request, httpclient.HTTPRequest._DEFAULTS)
+
+    # Websocket connection is currently unable to follow redirects
+    # Set follow_redirects to False to prevent a silent failure
+    request.follow_redirects = False
     conn = WebSocketClientConnection(request,
                                      on_message_callback=on_message_callback,
                                      compression_options=compression_options,