sockjs/sockjs-protocol — comment on commit 01f86a8846e5eeddd8f5114cbb9e67789e01a5b4
File: sockjs-protocol-0.1.py line 1052
By majek:

As you see, 'Go away'. Previous polling request shall be immediately unlinked (ie: not connected to a session). Thus every new request should get a proper close frame.