add cache buster on security check request

When doing a normal reload on the admin page to recheck the security,
the browser may not re-request the image again. This adds a timestamp to
the URL to ensure the image is tested again

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/scripts/behaviour.js b/lib/scripts/behaviour.js
index 608a29de0..41702fad7 100644
--- a/lib/scripts/behaviour.js
+++ b/lib/scripts/behaviour.js
@@ -234,7 +234,7 @@ var dw_behaviour = {
             $checkDiv.html(LANG.data_insecure);
             $checkDiv.addClass('error');
         }
-        img.src = $checkDiv.data('src');
+        img.src = $checkDiv.data('src') + '?t=' + Date.now();
     }
 };