app/javascript/blacklight/checkbox_submit.js in blacklight-7.0.0.rc1 vs app/javascript/blacklight/checkbox_submit.js in blacklight-7.0.0.rc2

@@ -16,15 +16,15 @@
 
   Uses HTML for a checkbox compatible with Bootstrap 3.
 
    Pass in options for your class name and labels:
    $("form.something").blCheckboxSubmit({
-        checked_label: "Selected",
-        unchecked_label: "Select",
-        progress_label: "Saving...",
         //cssClass is added to elements added, plus used for id base
         cssClass: "toggle_my_kinda_form",
+        error: function() {
+          #optional callback
+        },
         success: function(after_success_check_state) {
           #optional callback
         }
    });
 */
@@ -45,11 +45,11 @@
         //View needs to set data-doc-id so we know a unique value
         //for making DOM id
         var uniqueId = form.attr('data-doc-id') || Math.random();
         // if form is currently using method delete to change state,
         // then checkbox is currently checked
-        var checked = (form.find('input[name=_method][value=delete]').size() != 0);
+        var checked = (form.find('input[name=_method][value=delete]').length != 0);
 
         var checkbox = $('<input type="checkbox">')
           .addClass( options.cssClass )
           .attr('id', options.cssClass + '_' + uniqueId);
         var label = $('<label>')
@@ -92,14 +92,13 @@
                 url: form.attr('action'),
                 dataType: 'json',
                 type: form.attr('method').toUpperCase(),
                 data: form.serialize(),
                 error: function() {
-                   alert('Error');
-                   updateStateFor(checked);
                    label.removeAttr('disabled');
                    checkbox.removeAttr('disabled');
+                   options.error.call();
                 },
                 success: function(data, status, xhr) {
                   //if app isn't running at all, xhr annoyingly
                   //reports success with status 0.
                   if (xhr.status != 0) {
@@ -107,14 +106,13 @@
                     updateStateFor(checked);
                     label.removeAttr('disabled');
                     checkbox.removeAttr('disabled');
                     options.success.call(form, checked, xhr.responseJSON);
                   } else {
-                    alert('Error');
-                    updateStateFor(checked);
                     label.removeAttr('disabled');
                     checkbox.removeAttr('disabled');
+                    options.error.call();
                   }
                 }
             });
 
             return false;
@@ -126,8 +124,11 @@
     };
 
   $.fn.blCheckboxSubmit.defaults =  {
             //cssClass is added to elements added, plus used for id base
             cssClass: 'blCheckboxSubmit',
+            error: function() {
+              alert("Error");
+            },
             success: function() {} //callback
   };
 })(jQuery);