HTML Filtering example no longer working

I found this link:
http://datatables.net/examples/advanced_init/html_sort.html

by following the comments in this thread:
http://www.datatables.net/forums/discussion/807/how-to-filter-excluding-certain-columns-or-filter-only-on-text-content-not-html-tags-within-cells/p1

I tested in the latest versions of Chrome and Firefox and it seems like the filtering is not using just the text in the Link column. For example, if you search for "href", all of the rows remain in the table. I have seen the same behavior in my projects as well. Is this a bug, or am I just missing something?

Thanks,
Rich