anchor.diff:  chunked_upload(Module, Socket, _, Headers, <<>>) ->
       TransferEncoding = lhttpc_lib:header_value("transfer-encoding", Headers),
       {Body, HeadersAndTrailers} = webserver:read_chunked(Module, Socket),
  -    Trailer1 = lhttpc_lib:header_value("X-Trailer-1", HeadersAndTrailers),
  +    Trailer1 = lhttpc_lib:header_value("x-trailer-1", HeadersAndTrailers),
       Module:send(
           Socket,
           [
  
positive.code:     ?assertEqual({200, "OK"}, status(Response2)),
      ?assertEqual(<<?DEFAULT_STRING>>, body(Response2)),
      ?assertEqual(<<"This is chunky stuff!">>,
          lhttpc_lib:header_value("X-Test-Orig-Body", headers(Response2))).
  
  partial_upload_chunked() ->
      Port = start(gen_tcp, [fun chunked_upload/5, fun chunked_upload/5]),
  
negative.code:     ?assertEqual(<<"Again, great success!">>, body(SecondResponse)),
      ?assertEqual("chunked", lhttpc_lib:header_value("transfer-encoding",
              headers(SecondResponse))),
      ?assertEqual("1", lhttpc_lib:header_value("trailer-1",
              headers(SecondResponse))),
      ?assertEqual("2", lhttpc_lib:header_value("trailer-2",
              headers(SecondResponse))).
  
  partial_upload_identity() ->
  