anchor.diff:  				RangeHeader = [{"range",
   						"items " ++ integer_to_list(RangeStart2)
   						++ "-" ++ integer_to_list(RangeEnd2)}],
  -				RequestHeaders2 = RequestHeaders1 ++ RangeHeader,
  -				Request2 = {HostUrl ++ "/ocs/v1/client", RequestHeaders2},
  +				RequestHeaders3 = RequestHeaders2 ++ RangeHeader,
  +				Request2 = {HostUrl ++ "/ocs/v1/client", RequestHeaders3},
   				{ok, Result2} = httpc:request(get, Request2, [], []),
   				{{"HTTP/1.1", 200, _OK}, ResponseHeaders2, Body2} = Result2,
  +				{_, Etag} = lists:keyfind("etag", 1, ResponseHeaders2),
   				{_, AcceptRanges2} = lists:keyfind("accept-ranges", 1, ResponseHeaders2),
   				true = lists:member("items", string:tokens(AcceptRanges2, ", ")),
   				{_, Range} = lists:keyfind("content-range", 1, ResponseHeaders2),
  
positive.code: 	Request1 = {HostUrl ++ "/ocs/v1/client", RequestHeaders1},
  	{ok, Result1} = httpc:request(get, Request1, [], []),
  	{{"HTTP/1.1", 200, _OK}, ResponseHeaders1, Body1} = Result1,
  	{_, AcceptRanges1} = lists:keyfind("accept-ranges", 1, ResponseHeaders1),
  	true = lists:member("items", string:tokens(AcceptRanges1, ", ")),
  	{_, Range1} = lists:keyfind("content-range", 1, ResponseHeaders1),
  	["items", "1", RangeEndS1, "*"] = string:tokens(Range1, " -/"),
  	PageSize = list_to_integer(RangeEndS1),
  	{array, Clients1} = mochijson:decode(Body1),
  	PageSize = length(Clients1),
  
negative.code: 				RangeHeader = [{"range",
  						"items " ++ integer_to_list(RangeStart2)
  						++ "-" ++ integer_to_list(RangeEnd2)}],
  				RequestHeaders3 = RequestHeaders2 ++ RangeHeader,
  				Request2 = {HostUrl ++ "/ocs/v1/subscriber", RequestHeaders3},
  				{ok, Result2} = httpc:request(get, Request2, [], []),
  				{{"HTTP/1.1", 200, _OK}, ResponseHeaders2, Body2} = Result2,
  				{_, Etag} = lists:keyfind("etag", 1, ResponseHeaders2),
  				{_, AcceptRanges2} = lists:keyfind("accept-ranges", 1, ResponseHeaders2),
  				true = lists:member("items", string:tokens(AcceptRanges2, ", ")),
  				{_, Range} = lists:keyfind("content-range", 1, ResponseHeaders2),
  