removing <base href="[[++site_url]]" /> makes the links generated by wayfinder wrong for children resources. am using absolute urls for all images, js, css.
changed wayfinder rowtpl to have /[[+wf.link]].
<!-- wayfinder rowTpl -->
<li[[+wf.id]] class="[[+wf.classnames]]">
<a href="/[[+wf.link]]" title="[[+wf.title]]" [[+wf.attributes]]>[[+wf.linktext]]</a>
[[+wf.wrapper]]
</li>
everything works now except for the home menu then becomes.
http://xxx.com/http://xxxxx.com/
tabs works as well