Ajax 参数怎么加Referer,解决XMLHttpRequest(Ajax)不能设置自定义的Referer办法

$url = 'http://pandavip.www/check/check_ac1.cgi';

$ch = curl_init($url);

curl_setopt($ch, CURLOPT_POST, true); // POST

curl_setopt($ch, CURLOPT_POSTFIELDS, 'domain='.$dn.$ex);

curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0) Gecko/20100101 Firefox/8.0');

curl_setopt($ch, CURLOPT_COOKIE, '__utma=1.1486902564.1322109246.1322109246.1322109246.1; __utmz=1.1322109246.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); AdSource=GOOGLE%u641C%u7D22; AdWordID=gg96011009070005; __utmc=1');

curl_setopt($ch, CURLOPT_HTTPHEADER, array(

'X-Requested-With' => 'XMLHttpRequest', // 设置为Ajax方式

'Referer' => 'http://pandavip.www/cgi-bin/Check.cgi?queryType=0&domain1='.$dn.'&image.x=0&image.y=0&domain='.$dn.'&big5=n&sign=2&url=www&'.trim($ex, '.').'=yes' // 冒名顶替, 嘿嘿

));

curl_exec($ch); // 将查询结果返回前端, 用JS处理