Thread:PiotrekD/@comment-26402117-20181031211451

Sorry to hear you didn't get your question answered in CCC. Here is some info.

Tabview requires the page that's called to exist locally when parsed. Shared Help does not work with the tag, and neither does cross-wiki links.

However, it's possible to use scary transclusion to parse the tabview as if it were used locally on Community Central. So tabview could theoretically work from global templates to some degree.

However, I believe the tabview links do not appear as HTTPS in this case. This is how FANDOM's  class outputs cross-wiki links in their PHP.

So all cross wiki transclusion is broken until FANDOM migrates to HTTPS, because &lt;tabview&gt; tries to fetch the action=render view of that link to CC (which CORS will not allow).

EDIT: This information's only correct as of late August. Feel free to test whether works on Polish wikis. I'd be interested in the results ;) 