- Patch #104693 by Chris: switch back to HTTP/1.0 headers.

includes/common.inc

@@ -454,7 +454,7 @@ function drupal_http_request($url, $headers = array(), $method = 'GET', $data =
     $defaults[$header] = $header .': '. $value;
   }
 
-  $request = $method .' '. $path ." HTTP/1.1\r\n";
+  $request = $method .' '. $path ." HTTP/1.0\r\n";
   $request .= implode("\r\n", $defaults);
   $request .= "\r\n\r\n";
   if ($data) {