If attribute field is empty prevent attribute from being printed
>>> [!note] Migrated issue
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<!-- Migrated from issue #2820832. -->
Reported by: [zapo](https://www.drupal.org/user/3281551)
>>>
<p>Module works great. This is a little nit picky but it would be great if empty attributes didn't print. W3C's Validator complains about the empty href and rel attributes specifically.</p>
issue