Did Will and Kate fasten royal baby into his car seat properly?

Couple taking heat after photos show newborn strapped in too loosely.

Karissa Donkin

Will and Kate may be royals, but they’re also new parents learning how to take care of a newborn baby.

 And they’re taking a fair bit of heat online for not fastening the still-unnamed royal baby into his royal car seat properly.

After introducing the waving infant to hordes of media outside St. Mary’s Hospital in London, Will packed his new family into his Range Rover and drove home like a regular new dad.

The media got a glimpse of the baby, who was swaddled in his car seat with the strap loosely covering only one side of his tiny body — not tightly enough to keep him safe in a collision.

The Ontario Ministry of Transportation says you shouldn’t “be able to fit more than one finger underneath the harness straps at the child’s collarbone” if it’s a rear-facing seat.

In the U.K. — where new car seat rules came into effect in 2006 — it’s recommended babies that weigh under 13 kilograms use a rear-facing seat.

If the royal baby lived in Ontario, the new parents might not be able to leave the hospital without showing their son fastened in correctly in a car seat.

Toronto Public Health weighed in on the car seat debate, asking on Twitter if the little prince was “tucked in safely,” and linking to a list of tips on car seat safety.