Location link in map broken if location contains a "/"

If a device location contains a "/", the link on the dot in the SVG on the map will contain a non-escaped "/" and hence observium will return an error instead of the list of devices at the location.

html/pages/front/globe.php

35 if ($down > 0)

{ 36 $locations_down[] = "['".$location."', 100, '".implode(", ", $devices_down)."']"; 37 }

else

{ 38 $locations_up[] = "['".$location."', 0, '".implode(", ", $devices_down)."']"; 39 }

I suppose $location should be escaped.