If I go to https://phabricator.mydomain.com/diviner/, there is a link which is meant to point to https://secure.phabricator.com/T4558 but which actually points to http://phabricator.mydomain.com/T4558. The HTML is as follows:
<p> Right now, Diviner isn't very useful for generating documentation for projects other than Phabricator. If you're interested in using it in your own projects, leave feedback for us on <a href="https://secure.phabricator.com/T4558" class="remarkup-link" target="_blank" rel="noreferrer"></a> <a href="/T4558" class="phui-tag-view phui-tag-type-object " data-sigil="hovercard" data-meta="0_0"> <span class="phui-tag-core-closed"><span class="phui-tag-core phui-tag-color-object">T4558</span></span> </a>. </p>