The Nabble embedding code suggested by a forum's Embedding Options page has a bogus URL for the <script>
tag:
<a id="nabblelink" href="http://example.9999999.n2.nabble.com/">Example</a>
<script src="http://http://example.9999999.n2.nabble.com/embed/f9999999"></script>
Note the incorrect doubled
http://http://
value for
<script src="...">
. The same error is exhibited in email messages sent to forum owners instructing them to employ the new embedding code.
Also, as noted previously, the Embedding Options page's example <script>
tag lacks a type="..."
attribute, which results in HTML validation failure.