diff --git a/includes/common.inc b/includes/common.inc
index 40a7919..e1b2cea 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -1074,6 +1074,14 @@ function drupal_http_request($url, array $options = array()) {
       }
       elseif ($options['max_redirects']) {
         // Redirect to the new location.
+
+        // If the location is a relative path, we need to add it to the existing
+        // scheme and host.
+        $location_uri = @parse_url($location);
+        if (empty($location_uri['schema'])) {
+          $location = $uri['scheme'] . '://' .  $uri['host'] . $location;
+        }
+
         $options['max_redirects']--;
         $result = drupal_http_request($location, $options);
         $result->redirect_code = $code;