There are several things confusing here that seem to indicate that
this is not a bug...
1. Postgres is not a web server. It is a database management system,
and thus extensions one might hope to add to a web server are not
logical to expect to connect to Postgres.
2. It sounds as though you are using a version of Postgres that has
been customized by EnterpriseDB, and, as that is not something that
the community has code for, we're not able to be of much assistance.
As a user of EnterpriseDB's products, you are presumably a customer,
and should expect to get customer support from them. Most pointedly,
their build procedures are theirs, and not ours, and that's a place
where any help relevant to you would really need to come from
EnterpriseDB.