SharePoint Apps and client side caching

This is a demonstration of Office 365 Patterns and Practices code, which shows how you can use JS injection techniques to provide cross site collection navigation to site level.
Actual code and additional details can be found from following address - https://github.com/OfficeDev/PnP/tree/dev/Samples/OD4B.NavLinksInjection
Here are two other solutions to navigation cross SharePoint site collections, one using links (only for few collections) and one using the SharePoint Search (unlimited number of collections): http://www.kalmstrom.com/Tips/SharePoint-Links-Site-Collection-Navigation.htm
Vesa, you mentioned that this could pull terms from our taxonomy, Do you have any examples of how to do that?
If you have any feedback or comments related on the videos or generally PnP, please use the Office 365 Developer Patterns and Practices Yammer group to start discussion with other community members and with the PnP core team.