diff --git a/services_basic_auth.inc b/services_basic_auth.inc
index 6b089f6..8f1ad0d 100644
--- a/services_basic_auth.inc
+++ b/services_basic_auth.inc
@@ -29,6 +29,9 @@ function _services_basic_auth_authenticate_call($settings, $method, $args) {
   if (isset($_SERVER['HTTP_AUTHORIZATION']) AND !empty($_SERVER['HTTP_AUTHORIZATION'])) {
     list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) = explode(':', base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)), 2);
   }
+  elseif (isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION']) AND !empty($_SERVER['REDIRECT_HTTP_AUTHORIZATION'])) {
+    list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) = explode(':', base64_decode(substr($_SERVER['REDIRECT_HTTP_AUTHORIZATION'], 6)), 2);
+  }
 
   if (user_is_anonymous() && isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])) {
     // Fake a user_login form submission.