Not sure if this a feature request or a bug?
I named a Control Page: Zone-B-2 Dining Room + 1
This was accepted by Indigo and is listed correctly in the in the Indigo pane which lists Control Pages.
However when I click Show in Browser or Browser Preview I get the following message from safari: could not find control page "Zone-B-2 Dining Room 1"
The Control Page is accepted and displays correctly in Indigo Touch.