Content filtering not working as expected

[ocgltd]

I have enabled content filtering, and added "-ZOOMNOINDEX" to the list (without quotes).

In a page on my site I have:
<!-- ZOOMNOINDEX -->

Yet zoom still indexes the page. Why? I thought it should ignore the page as soon as it encounters the work ZOOMNOINDEX?

[David]

Content filtering only works on the content of the page. Not the HTML tags.

What you probably want to use is the noindex metatag.

<meta name="robots" content="noindex,nofollow">