Headers:='Host: '+Domain+#13+
'User-Agent: '+UserAgent+#13+
'Accept: '+Accept+#13+
'Accept-Encoding: gzip'+#13+
'Cookie: '+Cookie+#13+
'Connection: keep-alive'+#13+
'Content-Type: application/x-www-form-urlencoded';
HTTP:=TIdHTTP.Create();
HTTP.HTTPOptions:=[hoForceEncodeParams,hoKeepOrigProtocol];
HTTP.ProtocolVersion:=pv1_1;
HTTP.IOHandler:=SSL;
HTTP.Compressor:=CompressorZLib;
HTTP.HandleRedirects:=True;
HTTP.Request.CustomHeaders.AddText(Headers);
Response.ResponseText:=HTTP.Post(URL,PostStream,IndyTextEncoding_UTF8);