diff --git a/themes/bootstrap3/js/check_item_statuses.js b/themes/bootstrap3/js/check_item_statuses.js
index 0aeec0d860ad510de4fcb9fed2fdeee818c723a5..04dec21f4a7821ac3b15f5c275195a10892ca0ef 100644
--- a/themes/bootstrap3/js/check_item_statuses.js
+++ b/themes/bootstrap3/js/check_item_statuses.js
@@ -80,9 +80,10 @@ function checkItemStatuses() {
     $(".ajax-availability").removeClass('ajax-availability');
   })
   .fail(function(response, textStatus) {
-    if (textStatus == "abort") { return; }
+    $('.ajax-availability').empty();
+    if (textStatus == 'abort' || typeof response.responseJSON === 'undefined') { return; }
     // display the error message on each of the ajax status place holder
-    $(".ajax-availability").empty().append(response.responseJSON.data).addClass('text-danger');
+    $('.ajax-availability').append(response.responseJSON.data).addClass('text-danger');
   });
 }
 
diff --git a/themes/bootstrap3/js/openurl.js b/themes/bootstrap3/js/openurl.js
index 638c6373b5a6875910ce3a1b912706381e24ec5a..88f50d1dbd4b5937f35c498d7f2925fcc76226d2 100644
--- a/themes/bootstrap3/js/openurl.js
+++ b/themes/bootstrap3/js/openurl.js
@@ -11,9 +11,9 @@ function loadResolverLinks($target, openUrl, searchClassId) {
     $target.removeClass('ajax_availability').empty().append(response.data);
   })
   .fail(function(response, textStatus) {
-    if (textStatus == "abort") { return; }
-    $target.removeClass('ajax_availability').addClass('text-danger')
-      .empty().append(response.responseJSON.data);
+    $target.removeClass('ajax_availability').addClass('text-danger').empty();
+    if (textStatus == 'abort' || typeof response.responseJSON === 'undefined') { return; }
+    $target.append(response.responseJSON.data);
   });
 }
 
diff --git a/themes/bootstrap3/js/record.js b/themes/bootstrap3/js/record.js
index b57f6b22fa925e143e279b27fcf766c086061f52..6ed8710bde7576b2bd61dc14bb3983bd99f6b6e5 100644
--- a/themes/bootstrap3/js/record.js
+++ b/themes/bootstrap3/js/record.js
@@ -96,7 +96,7 @@ function registerAjaxCommentRecord() {
       $(form).find('input[type="submit"]').button('loading');
     })
     .fail(function(response, textStatus) {
-      if (textStatus == "abort") { return; }
+      if (textStatus == 'abort' || typeof response.responseJSON === 'undefined') { return; }
       Lightbox.displayError(response.responseJSON.data);
     });
     return false;