Ok,
so I finally worked it out, local users don’t get links to the top
level wiki in the wiki farm!
Keith
On 10 Mar 2017, at 0:40, Keith H wrote:
  Hello All,
 Is there an official way to customise the breadcrumb control?
 I managed to sneak this css into the skin colour customise area, in
 the advanced section, the house icon and first level has gone.
 /* add here your custom rules */
 ol#hierarchy > li.wiki {
 display:none;
 }
 li.space:before {
    content:"" !important;
 }
 Now I want the house back but going to the current wiki home page,
 rather than the parent wiki home page.
 Keith
 On 8 Mar 2017, at 20:44, Keith H wrote:
> Hello,
>
> I have configured xwiki as a wikifarm serving several domains, and
> its great, but there is one particular anomaly.
>
> Most of my initial users will be using the top level wiki
>
> A  - B
>    - C
>    - D
>
> Each of the wiki’s is not equal. The user using wiki C under one
> domain name, sees a breadcrumbs trail, and a little house icon that
> takes him to wiki A in a completely different domain, rather than to
> the Homepage of the domain she started in.
>
> Is there a simple fix?
>
> thanks in advance
>
> Keith