Jim, after the news that Google cracked SHA-1 wide open on February 23, 2017, even Edge is about to be updated to restrict SHA-1 certificates. I believe this patch is due out next Patch Tuesday, the 14th.
The certificate may still technically be valid, but very shortly no current browser will honor it without manual intervention, assuming it allows access at all.
Cracked wide open, eh. Yeah I read that too. Well, like I said, John will be updating the certificate as soon as he can.