anchor.diff:  	{ok, << 4:8, 0:40, _:Len/binary >>} = gen_tcp:recv(Socket, 6 + Len, 1000),
   	%% Send the SETTINGS ack.
   	ok = gen_tcp:send(Socket, cow_http2:settings_ack()),
  -	%% Receive the SETTINGS ack, and the response HEADERS and DATA (streamid 1).
  +	%% Receive the SETTINGS ack, and the response HEADERS and DATA (Stream ID 1).
   	Received = lists:reverse(lists:foldl(fun(_, Acc) ->
   		case gen_tcp:recv(Socket, 9, 1000) of
   			{ok, << 0:24, 4:8, 1:8, 0:32 >>} ->
  
positive.code: 	ok.
  
  %% @todo We need a successful test with actual options in HTTP2-Settings.
  
  %% @todo We need to test an upgrade with a request body (small and too large).
  
  %% @todo Also assigned default priority values but not sure how to test that.
  http_upgrade_response(Config) ->
  	doc("A response must be sent to the initial HTTP/1.1 request "
  		"after switching to HTTP/2. The response must use "
  
negative.code: 	{ok, << 8:24, 6:8, 0:7, 1:1, 0:96 >>} = gen_tcp:recv(Socket, 17, 1000),
  	ok.
  
  %% @todo If we ever add an option to disable HTTP/2, we need to check
  %% the following things:
  %% * HTTP/1.1 Upgrade returns an HTTP/1.1 response (3.2)
  %% * HTTP/1.1 Upgrade errors out if the client sends HTTP/2 frames
  %%   without waiting for the 101 response (3.2, 3.5)
  %% * Prior knowledge handshake fails (3.4)
  %% * ALPN selects HTTP/1.1 (3.3)
  