Datacenter resets on page refresh

If you are viewing a VM (or some other datacenter-specific data) and you refresh the page, the datacenter dropdown resets to the first item.

For example: I am viewing a machine in LD4, at this URL:
http://10.20.14.17/#/machines/c445fbfe-20af-4179-bc49-12fde124dc80
If I refresh my browser the VM information is now missing, because the dropdown displays "NY4".

* Perhaps this is better logged as an issue - but I don't see that as an option, I only see pull requests in this repo, sorry.