So was the flag of Canada on former Prime Minister Pierre Trudeau’s coffin.
While the Church says that only the pall and some Christian symbols are allowed on the coffin once it’s in the church, that has caused so much rancor among veterans and others that, in many instances, priests won’t enforce the rule. I know my former pastor, a military brat, categorically stated that he’d never deny a veteran like his dad the flag on his coffin.
There was a big to-do between the Catholic Church and the Royal Canadian Legion over this in New Brunswick, Canada, a few years ago and as I recall it ended with at least one bishop saying that the flag could remain on the coffin of veterans even though the CCCB calls for removing the flag and replacing it with the pall as part of the reception of the body and replacing the pall with the flag at the end of the funeral liturgy.