无法加载 pdf 文档 chrome

Question

尝试在 chrome 中加载 pdf 并打印，但一直无法加载 pdf 文档

$s = curl_init(); 
curl_setopt($s,CURLOPT_URL,$url); 
curl_setopt($s,CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($s,CURLOPT_RETURNTRANSFER,true); 
curl_setopt($s,CURLOPT_POSTFIELDS,http_build_query($t)); 
header('Content-type: application/pdf');
$r = curl_exec($s); 
curl_close($s); 
e($r);