- Patch #104693 by ChrisKennedy: send proper HTTP headers: HTTP/1.0 -> HTTP/1.1.

includes/bootstrap.inc

@@ -800,7 +800,7 @@ function _drupal_bootstrap($phase) {
     case DRUPAL_BOOTSTRAP_ACCESS:
       // Deny access to hosts which were banned - t() is not yet available.
       if (drupal_is_denied('host', $_SERVER['REMOTE_ADDR'])) {
-        header('HTTP/1.0 403 Forbidden');
+        header('HTTP/1.1 403 Forbidden');
         print 'Sorry, '. $_SERVER['REMOTE_ADDR']. ' has been banned.';
         exit();
       }

includes/common.inc

@@ -320,7 +320,7 @@ function drupal_goto($path = '', $query = NULL, $fragment = NULL, $http_response
  * Generates a site off-line message
  */
 function drupal_site_offline() {
-  drupal_set_header('HTTP/1.0 503 Service unavailable');
+  drupal_set_header('HTTP/1.1 503 Service unavailable');
   drupal_set_title(t('Site off-line'));
   print theme('maintenance_page', filter_xss_admin(variable_get('site_offline_message',
     t('@site is currently under maintenance. We should be back shortly. Thank you for your patience.', array('@site' => variable_get('site_name', 'Drupal'))))));
@@ -330,7 +330,7 @@ function drupal_site_offline() {
  * Generates a 404 error if the request can not be handled.
  */
 function drupal_not_found() {
-  drupal_set_header('HTTP/1.0 404 Not Found');
+  drupal_set_header('HTTP/1.1 404 Not Found');
 
   watchdog('page not found', check_plain($_GET['q']), WATCHDOG_WARNING);
 
@@ -360,7 +360,7 @@ function drupal_not_found() {
  * Generates a 403 error if the request is not allowed.
  */
 function drupal_access_denied() {
-  drupal_set_header('HTTP/1.0 403 Forbidden');
+  drupal_set_header('HTTP/1.1 403 Forbidden');
   watchdog('access denied', check_plain($_GET['q']), WATCHDOG_WARNING);
 
 // Keep old path for reference
@@ -454,7 +454,7 @@ function drupal_http_request($url, $headers = array(), $method = 'GET', $data =
     $defaults[$header] = $header .': '. $value;
   }
 
-  $request = $method .' '. $path ." HTTP/1.0\r\n";
+  $request = $method .' '. $path ." HTTP/1.1\r\n";
   $request .= implode("\r\n", $defaults);
   $request .= "\r\n\r\n";
   if ($data) {