websocket: set follow_redirects to False

to prevent silent failure when the websocket client gets a 3xx redirect response, because it does not currently support redirects Partial fix for issue #2405
tornadoweb · Sep 22, 2020 · d7dedcf · d7dedcf
1 parent 94f155d
commit d7dedcf
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/tornado/websocket.py b/tornado/websocket.py
@@ -1645,6 +1645,9 @@ def websocket_connect(
         request.headers = httputil.HTTPHeaders(request.headers)
     else:
         request = httpclient.HTTPRequest(url, connect_timeout=connect_timeout)
+    # Websocket connection is currently unable to follow redirects
+    request.follow_redirects = False
+
     request = cast(
         httpclient.HTTPRequest,
         httpclient._RequestProxy(request, httpclient.HTTPRequest._DEFAULTS),