So, I understand mimicking the Perl version exactly, but I think this _might_
be something we don't really need to transfer from the Perl version. Since the
Perl version is `internal`, we might have some more leeway in dropping this
behavior because I believe that `internal` distinction means that only
components within TC should use it. As far as I can tell, TR is the only
internal consumer of this API, and I'm pretty sure it will reject any
federations response that contains `{"cdnName": "foo"}` in the list of
federations. This is because TR requires the "deliveryService" and "mappings"
keys in each object in the list and throws an exception if any object in the
list doesn't have those keys.
Being able to get rid of this behavior also removes the heterogeneous response
problem with this endpoint, and I think if we find a dependency on this weird
behavior somewhere as we transition components to this new API, we should just
remove that dependency on getting back that `tc.AllFederationCDN` object as it
should be totally unnecessary anyways.
I won't hold up the PR for this, since we can still remove this weird behavior
later, but do you agree that it can be removed?
[ Full content available at: https://github.com/apache/trafficcontrol/pull/2862
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