Ticket #30859: 30859-post-js.diff

wp-admin/js/post.js

@@ -23 +23 @@
 
 tagBox = {
         clean : function(tags) {
+                if( 'undefined' == typeof(tags))
+                        return false;
+
                 var comma = postL10n.comma;
                 if ( ',' !== comma )
                         tags = tags.replace(new RegExp(comma, 'g'), ',');
@@ -99 +102 @@
                 tagsval = tags.val();
                 newtags = tagsval ? tagsval + comma + text : text;
 
+                if( 'undefined' == typeof(newtags))
+                        return false;
+
                 newtags = this.clean( newtags );
                 newtags = array_unique_noempty( newtags.split(comma) ).join(comma);
                 tags.val(newtags);