Using Snoopy to impersonate a login-Login failed-multi-domain Jump workaround

Log on with Snoopy-Login failed-multi-domain jump
The code is as follows:

 Require_once ("Snoopy.class.php");
$snoopy = new Snoopy;
$snoopy->agent = "mozilla/5.0 (Windows NT 6.1; WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/38.0.2125.122 safari/537.36 SE 2.X METASR 1.0 ";
$snoopy->referer = "http://agent.fang.com/";
$snoopy->rawheaders["Pragma"] = "No-cache";
$snoopy->maxredirs = number of 2;//redirects
$snoopy->offsiteok = false;
$snoopy->user = "esf-agen42249";
$snoopy->pass = "dlesf2010";
$submit _url = "http://agent.fang.com/DealLoginAjax.aspx";
$submit _vars["str_username"] = "esf-agen42249";
$submit _vars["str_userpwd"] = "dlesf2010";
$submit _vars["Str_imgcode"] = "Please enter the verification code";
$snoopy->submit ($submit _url, $submit _vars);
$snoopy->setcookies ();
if ($snoopy->fetch ("http://b.agent.fang.com/magent/HomePage.aspx")) {
Print_r ($snoopy->headers);
Print_r ($snoopy->cookies);
Echo ("
 
  
 ");
Print_r ($snoopy->results);//Unable to get login to see the page
}else
echo "Error:" $snoopy->error. " \ n ";
?>

Ask the big God to point out, as if the login failed to get the main interface after login
------to solve the idea----------------------
You can't read a document without playing. Don't play at least you should look at the HTTP request data first?

Normal login, see HTTP data transfer:

Remote address:111.40.195.21:80
Request url:http://agent.fang.com/dealloginajax.aspx?str_username=esf-agen42249&str_userpwd= 571c041891354cc5b51725f0b37170f80efb4f27ba8c897e4ff67ebe17b4ce599f28ac5f7eceeb5ff2d9755c62a57db74f206d3c52ccb79b71c24e385 8f29ac7d49dfb8d77192529ac387b4e9c6426ecf70f3003ce348dcd6bd4d1af84e9293164516745c654d2c9bc0089c80f02ba5f69aeaac1e142c8af8e 000ac7b1a4a278&str_imgcode=%e8%af%b7%e8%be%93%e5%85%a5%e9%aa%8c%e8%af%81%e7%a0%81
Request Method:get
Status code:200 OK

Str_username=esf-agen42249&str_userpwd= 571c041891354cc5b51725f0b37170f80efb4f27ba8c897e4ff67ebe17b4ce599f28ac5f7eceeb5ff2d9755c62a57db74f206d3c52ccb79b71c24e385 8f29ac7d49dfb8d77192529ac387b4e9c6426ecf70f3003ce348dcd6bd4d1af84e9293164516745c654d2c9bc0089c80f02ba5f69aeaac1e142c8af8e 000ac7b1a4a278&str_imgcode=%e8%af%b7%e8%be%93%e5%85%a5%e9%aa%8c%e8%af%81%e7%a0%81

Did you see it clearly? Get landed?

