{error,exit,
{noproc,
{gen_server,call,
[httpc_manager,
{request,
{request,undefined,<0.1871.0>,0,http,
"/recaptcha/api/verify",[],post,
{http_request_h,undefined,"keep-alive",undefined,
undefined,undefined,undefined,undefined,undefined,
undefined,undefined,undefined,undefined,undefined,
undefined,undefined,undefined,undefined,undefined,
undefined,undefined,undefined,undefined,[],undefined,
undefined,undefined,undefined,"0",undefined,
undefined,undefined,undefined,undefined,undefined,[]},
{"application/x-www-form-urlencoded",
"privatekey=6LfMFfoSAAAAALHgB7BKCn0ZM8QInWGnCvBZaSAG&challenge=03AHJ_Vuv5tpxpfGk_PrOoymS1xJSEctQGgNrWUGzxZwyQaWwOMqe5kG4PMCe6giunCU2OmwrVzySjBmaOL3HLBa-UWUSzzV3bhBXWcew-XpITSvEnA8t7f4GeY2c3kFrJBAqVzalz_Wks0IxLRnR4UL1oaxEZdYrMYSIli-2BmKTHGQYDWDxGmShVZK_DDIhMIQoxp_N7SQtU6HiI8WknmBrlbqx8Ssl9r4AgALNkZLQ-rsQxsuojCmTZ7-W5L6u-3nPk0Qn0vUDMb9nY6jNkXMXFJHT91wHSulpDynjslTkO-qFU2454im4&response=2009&remoteip=127.0.0.1"},
{http_options,"HTTP/1.1",infinity,true,
{essl,[]},
undefined,false,infinity,false},
1418300093807,undefined,undefined,false}},
infinity]}},
[{gen_server,call,3,[{file,"gen_server.erl"},{line,190}]},
{httpc,handle_request,9,[{file,"httpc.erl"},{line,572}]},
{element_recaptcha,evaluate_captcha,3,
[{file,"src/elements/other/element_recaptcha.erl"},{line,150}]},
{element_recaptcha,event,1,
[{file,"src/elements/other/element_recaptcha.erl"},{line,75}]},
{wf_core,run_websocket,1,[{file,"src/wf_core.erl"},{line,78}]},
{nitrogen,ws_message_catched,1,[{file,"src/nitrogen.erl"},{line,68}]},
{nitrogen,ws_message,3,[{file,"src/nitrogen.erl"},{line,59}]},
{cowboy_simple_bridge_anchor,websocket_handle,3,
[{file,"src/cowboy_bridge_modules/cowboy_simple_bridge_anchor.erl"},
{line,65}]}]}
Best wishes, T0ha aka Anton Shvein.