Index: curl_helper.php
===================================================================
--- curl_helper.php	(revision 13936)
+++ curl_helper.php	(working copy)
@@ -133,6 +133,10 @@
 				CURLOPT_RETURNTRANSFER => 1,
 				CURLOPT_REFERER => PROTOCOL.SERVER_NAME,
 				CURLOPT_USERAGENT => $_SERVER['HTTP_USER_AGENT'],
+				
+				// don't verify SSL certificates
+				CURLOPT_SSL_VERIFYPEER => false,
+				CURLOPT_HTTPHEADER => Array ('Expect:'),
 			);
 
 			if ($this->requestHeaders) {