> On Mar 31, 2021, at 1:43 PM, Michael Wojcik <michael.woj...@microfocus.com>
> wrote:
>
> As far as I can see, neither PKIX (RFC 5280) nor the CA/BF Baseline
> Requirements say anything about the practice, though I may have missed
> something. I had a vague memory that some standard or "best practice"
> guideline somewhere said the server should send the chain up to but not
> including the root, but I don't know what that might have been.
Inclusion of the self-signed root is harmless. The only case that
I know of where this is actually necessary is with DANE-TA(2) when
the TLSA RRset has a hash of the trusted root cert or public key.
--
Viktor.
