Google Maps missing Ontario on JetBlue flight

Last month, JetBlue launched a real-time flight tracking channel featuring Google Maps on its in-flight TVs. On Sunday, I flew from Boston, MA, to Oakland, CA, on JetBlue -- and was surprised to find that Ontario, Canada, was a blank area on Google Maps when we flew over it. There were plenty of details on the map until we crossed over Buffalo, New York, and the details returned when we crossed back into the United States over Detroit, Michigan. Does JetBlue have a blind spot on its map -- or has everything from Hamilton to Sarnia been moved to an "undisclosed location"?