Are there tag links on the page with multiple tags per link? If not, then you probably want to use something like
```
if(!item.tags.length) {
  item.tags = ZU.xpath(doc, '//div[@class="keywords"]/a')
    .map(function(node) { return ZU.trimInternal(node.textContent); });
}
```
Otherwise you could be splitting up tags that contain commas.